diff --git a/.generator/schemas/v1/openapi.yaml b/.generator/schemas/v1/openapi.yaml
index 2ba4dbf6d6..729000cd1e 100644
--- a/.generator/schemas/v1/openapi.yaml
+++ b/.generator/schemas/v1/openapi.yaml
@@ -1443,6 +1443,10 @@ components:
           format: date-time
           readOnly: true
           type: string
+        default_timeframe:
+          $ref: "#/components/schemas/DashboardDefaultTimeframeSetting"
+          description: The default timeframe applied when opening the dashboard. Set to `null` to clear.
+          nullable: true
         description:
           description: Description of the dashboard.
           nullable: true
@@ -1557,6 +1561,11 @@ components:
       required:
         - data
       type: object
+    DashboardDefaultTimeframeSetting:
+      description: The default timeframe applied when opening the dashboard. Set to `null` to clear the dashboard's default timeframe.
+      oneOf:
+        - $ref: "#/components/schemas/DashboardLiveTimeframe"
+        - $ref: "#/components/schemas/DashboardFixedTimeframe"
     DashboardDeleteResponse:
       description: Response from the delete dashboard call.
       properties:
@@ -1564,6 +1573,36 @@ components:
           description: ID of the deleted dashboard.
           type: string
       type: object
+    DashboardFixedTimeframe:
+      description: A fixed dashboard timeframe.
+      properties:
+        from:
+          description: Start time in milliseconds since epoch.
+          example: 1712080128000
+          format: int64
+          minimum: 0
+          type: integer
+        to:
+          description: End time in milliseconds since epoch.
+          example: 1712083128000
+          format: int64
+          minimum: 0
+          type: integer
+        type:
+          $ref: "#/components/schemas/DashboardFixedTimeframeType"
+      required:
+        - type
+        - from
+        - to
+      type: object
+    DashboardFixedTimeframeType:
+      description: Type of fixed timeframe.
+      enum:
+        - fixed
+      example: fixed
+      type: string
+      x-enum-varnames:
+        - FIXED
     DashboardGlobalTime:
       description: Object containing the live span selection for the dashboard.
       properties:
@@ -1672,6 +1711,32 @@ components:
             $ref: "#/components/schemas/DashboardList"
           type: array
       type: object
+    DashboardLiveTimeframe:
+      description: A live dashboard timeframe.
+      properties:
+        type:
+          $ref: "#/components/schemas/DashboardLiveTimeframeType"
+        unit:
+          $ref: "#/components/schemas/WidgetLiveSpanUnit"
+        value:
+          description: Value of the live timeframe span.
+          example: 4
+          format: int64
+          minimum: 1
+          type: integer
+      required:
+        - type
+        - value
+        - unit
+      type: object
+    DashboardLiveTimeframeType:
+      description: Type of live timeframe.
+      enum:
+        - live
+      example: live
+      type: string
+      x-enum-varnames:
+        - LIVE
     DashboardReflowType:
       description: |-
         Reflow type for a **new dashboard layout** dashboard. Set this only when layout type is 'ordered'.
diff --git a/docs/datadog_api_client.v1.model.rst b/docs/datadog_api_client.v1.model.rst
index 1b6e3313f9..134b1fdbdd 100644
--- a/docs/datadog_api_client.v1.model.rst
+++ b/docs/datadog_api_client.v1.model.rst
@@ -564,6 +564,13 @@ datadog\_api\_client.v1.model.dashboard\_bulk\_delete\_request module
    :members:
    :show-inheritance:
 
+datadog\_api\_client.v1.model.dashboard\_default\_timeframe\_setting module
+---------------------------------------------------------------------------
+
+.. automodule:: datadog_api_client.v1.model.dashboard_default_timeframe_setting
+   :members:
+   :show-inheritance:
+
 datadog\_api\_client.v1.model.dashboard\_delete\_response module
 ----------------------------------------------------------------
 
@@ -571,6 +578,20 @@ datadog\_api\_client.v1.model.dashboard\_delete\_response module
    :members:
    :show-inheritance:
 
+datadog\_api\_client.v1.model.dashboard\_fixed\_timeframe module
+----------------------------------------------------------------
+
+.. automodule:: datadog_api_client.v1.model.dashboard_fixed_timeframe
+   :members:
+   :show-inheritance:
+
+datadog\_api\_client.v1.model.dashboard\_fixed\_timeframe\_type module
+----------------------------------------------------------------------
+
+.. automodule:: datadog_api_client.v1.model.dashboard_fixed_timeframe_type
+   :members:
+   :show-inheritance:
+
 datadog\_api\_client.v1.model.dashboard\_global\_time module
 ------------------------------------------------------------
 
@@ -620,6 +641,20 @@ datadog\_api\_client.v1.model.dashboard\_list\_list\_response module
    :members:
    :show-inheritance:
 
+datadog\_api\_client.v1.model.dashboard\_live\_timeframe module
+---------------------------------------------------------------
+
+.. automodule:: datadog_api_client.v1.model.dashboard_live_timeframe
+   :members:
+   :show-inheritance:
+
+datadog\_api\_client.v1.model.dashboard\_live\_timeframe\_type module
+---------------------------------------------------------------------
+
+.. automodule:: datadog_api_client.v1.model.dashboard_live_timeframe_type
+   :members:
+   :show-inheritance:
+
 datadog\_api\_client.v1.model.dashboard\_reflow\_type module
 ------------------------------------------------------------
 
diff --git a/examples/v1/dashboards/CreateDashboard_4032568083.py b/examples/v1/dashboards/CreateDashboard_4032568083.py
new file mode 100644
index 0000000000..2a17f9407d
--- /dev/null
+++ b/examples/v1/dashboards/CreateDashboard_4032568083.py
@@ -0,0 +1,47 @@
+"""
+Create a new dashboard with a live default_timeframe returns "OK" response
+"""
+
+from datadog_api_client import ApiClient, Configuration
+from datadog_api_client.v1.api.dashboards_api import DashboardsApi
+from datadog_api_client.v1.model.dashboard import Dashboard
+from datadog_api_client.v1.model.dashboard_layout_type import DashboardLayoutType
+from datadog_api_client.v1.model.dashboard_live_timeframe import DashboardLiveTimeframe
+from datadog_api_client.v1.model.dashboard_live_timeframe_type import DashboardLiveTimeframeType
+from datadog_api_client.v1.model.note_widget_definition import NoteWidgetDefinition
+from datadog_api_client.v1.model.note_widget_definition_type import NoteWidgetDefinitionType
+from datadog_api_client.v1.model.widget import Widget
+from datadog_api_client.v1.model.widget_live_span_unit import WidgetLiveSpanUnit
+from datadog_api_client.v1.model.widget_text_align import WidgetTextAlign
+from datadog_api_client.v1.model.widget_tick_edge import WidgetTickEdge
+
+body = Dashboard(
+    title="Example-Dashboard",
+    layout_type=DashboardLayoutType.ORDERED,
+    widgets=[
+        Widget(
+            definition=NoteWidgetDefinition(
+                type=NoteWidgetDefinitionType.NOTE,
+                content="test",
+                background_color="white",
+                font_size="14",
+                text_align=WidgetTextAlign.LEFT,
+                show_tick=False,
+                tick_pos="50%",
+                tick_edge=WidgetTickEdge.LEFT,
+            ),
+        ),
+    ],
+    default_timeframe=DashboardLiveTimeframe(
+        type=DashboardLiveTimeframeType.LIVE,
+        unit=WidgetLiveSpanUnit.HOUR,
+        value=4,
+    ),
+)
+
+configuration = Configuration()
+with ApiClient(configuration) as api_client:
+    api_instance = DashboardsApi(api_client)
+    response = api_instance.create_dashboard(body=body)
+
+    print(response)
diff --git a/src/datadog_api_client/v1/model/dashboard.py b/src/datadog_api_client/v1/model/dashboard.py
index 13c8ebc136..10c7d15b11 100644
--- a/src/datadog_api_client/v1/model/dashboard.py
+++ b/src/datadog_api_client/v1/model/dashboard.py
@@ -16,12 +16,15 @@
 
 
 if TYPE_CHECKING:
+    from datadog_api_client.v1.model.dashboard_default_timeframe_setting import DashboardDefaultTimeframeSetting
     from datadog_api_client.v1.model.dashboard_layout_type import DashboardLayoutType
     from datadog_api_client.v1.model.dashboard_reflow_type import DashboardReflowType
     from datadog_api_client.v1.model.dashboard_tab import DashboardTab
     from datadog_api_client.v1.model.dashboard_template_variable_preset import DashboardTemplateVariablePreset
     from datadog_api_client.v1.model.dashboard_template_variable import DashboardTemplateVariable
     from datadog_api_client.v1.model.widget import Widget
+    from datadog_api_client.v1.model.dashboard_live_timeframe import DashboardLiveTimeframe
+    from datadog_api_client.v1.model.dashboard_fixed_timeframe import DashboardFixedTimeframe
 
 
 class Dashboard(ModelNormal):
@@ -36,6 +39,7 @@ class Dashboard(ModelNormal):
 
     @cached_property
     def openapi_types(_):
+        from datadog_api_client.v1.model.dashboard_default_timeframe_setting import DashboardDefaultTimeframeSetting
         from datadog_api_client.v1.model.dashboard_layout_type import DashboardLayoutType
         from datadog_api_client.v1.model.dashboard_reflow_type import DashboardReflowType
         from datadog_api_client.v1.model.dashboard_tab import DashboardTab
@@ -47,6 +51,7 @@ def openapi_types(_):
             "author_handle": (str,),
             "author_name": (str, none_type),
             "created_at": (datetime,),
+            "default_timeframe": (DashboardDefaultTimeframeSetting,),
             "description": (str, none_type),
             "id": (str,),
             "is_read_only": (bool,),
@@ -68,6 +73,7 @@ def openapi_types(_):
         "author_handle": "author_handle",
         "author_name": "author_name",
         "created_at": "created_at",
+        "default_timeframe": "default_timeframe",
         "description": "description",
         "id": "id",
         "is_read_only": "is_read_only",
@@ -101,6 +107,9 @@ def __init__(
         author_handle: Union[str, UnsetType] = unset,
         author_name: Union[str, none_type, UnsetType] = unset,
         created_at: Union[datetime, UnsetType] = unset,
+        default_timeframe: Union[
+            DashboardDefaultTimeframeSetting, DashboardLiveTimeframe, DashboardFixedTimeframe, UnsetType
+        ] = unset,
         description: Union[str, none_type, UnsetType] = unset,
         id: Union[str, UnsetType] = unset,
         is_read_only: Union[bool, UnsetType] = unset,
@@ -128,6 +137,9 @@ def __init__(
         :param created_at: Creation date of the dashboard.
         :type created_at: datetime, optional
 
+        :param default_timeframe: The default timeframe applied when opening the dashboard. Set to ``null`` to clear the dashboard's default timeframe.
+        :type default_timeframe: DashboardDefaultTimeframeSetting, optional
+
         :param description: Description of the dashboard.
         :type description: str, none_type, optional
 
@@ -183,6 +195,8 @@ def __init__(
             kwargs["author_name"] = author_name
         if created_at is not unset:
             kwargs["created_at"] = created_at
+        if default_timeframe is not unset:
+            kwargs["default_timeframe"] = default_timeframe
         if description is not unset:
             kwargs["description"] = description
         if id is not unset:
diff --git a/src/datadog_api_client/v1/model/dashboard_default_timeframe_setting.py b/src/datadog_api_client/v1/model/dashboard_default_timeframe_setting.py
new file mode 100644
index 0000000000..967973d82c
--- /dev/null
+++ b/src/datadog_api_client/v1/model/dashboard_default_timeframe_setting.py
@@ -0,0 +1,52 @@
+# Unless explicitly stated otherwise all files in this repository are licensed under the Apache-2.0 License.
+# This product includes software developed at Datadog (https://www.datadoghq.com/).
+# Copyright 2019-Present Datadog, Inc.
+from __future__ import annotations
+
+
+from datadog_api_client.model_utils import (
+    ModelComposed,
+    cached_property,
+)
+
+
+class DashboardDefaultTimeframeSetting(ModelComposed):
+    def __init__(self, **kwargs):
+        """
+        The default timeframe applied when opening the dashboard. Set to ``null`` to clear the dashboard's default timeframe.
+
+        :param type: Type of live timeframe.
+        :type type: DashboardLiveTimeframeType
+
+        :param unit: Unit of the time span.
+        :type unit: WidgetLiveSpanUnit
+
+        :param value: Value of the live timeframe span.
+        :type value: int
+
+        :param _from: Start time in milliseconds since epoch.
+        :type _from: int
+
+        :param to: End time in milliseconds since epoch.
+        :type to: int
+        """
+        super().__init__(kwargs)
+
+    @cached_property
+    def _composed_schemas(_):
+        # we need this here to make our import statements work
+        # we must store _composed_schemas in here so the code is only run
+        # when we invoke this method. If we kept this at the class
+        # level we would get an error because the class level
+        # code would be run when this module is imported, and these composed
+        # classes don't exist yet because their module has not finished
+        # loading
+        from datadog_api_client.v1.model.dashboard_live_timeframe import DashboardLiveTimeframe
+        from datadog_api_client.v1.model.dashboard_fixed_timeframe import DashboardFixedTimeframe
+
+        return {
+            "oneOf": [
+                DashboardLiveTimeframe,
+                DashboardFixedTimeframe,
+            ],
+        }
diff --git a/src/datadog_api_client/v1/model/dashboard_fixed_timeframe.py b/src/datadog_api_client/v1/model/dashboard_fixed_timeframe.py
new file mode 100644
index 0000000000..260da325a5
--- /dev/null
+++ b/src/datadog_api_client/v1/model/dashboard_fixed_timeframe.py
@@ -0,0 +1,61 @@
+# Unless explicitly stated otherwise all files in this repository are licensed under the Apache-2.0 License.
+# This product includes software developed at Datadog (https://www.datadoghq.com/).
+# Copyright 2019-Present Datadog, Inc.
+from __future__ import annotations
+
+from typing import TYPE_CHECKING
+
+from datadog_api_client.model_utils import (
+    ModelNormal,
+    cached_property,
+)
+
+
+if TYPE_CHECKING:
+    from datadog_api_client.v1.model.dashboard_fixed_timeframe_type import DashboardFixedTimeframeType
+
+
+class DashboardFixedTimeframe(ModelNormal):
+    validations = {
+        "_from": {
+            "inclusive_minimum": 0,
+        },
+        "to": {
+            "inclusive_minimum": 0,
+        },
+    }
+
+    @cached_property
+    def openapi_types(_):
+        from datadog_api_client.v1.model.dashboard_fixed_timeframe_type import DashboardFixedTimeframeType
+
+        return {
+            "_from": (int,),
+            "to": (int,),
+            "type": (DashboardFixedTimeframeType,),
+        }
+
+    attribute_map = {
+        "_from": "from",
+        "to": "to",
+        "type": "type",
+    }
+
+    def __init__(self_, _from: int, to: int, type: DashboardFixedTimeframeType, **kwargs):
+        """
+        A fixed dashboard timeframe.
+
+        :param _from: Start time in milliseconds since epoch.
+        :type _from: int
+
+        :param to: End time in milliseconds since epoch.
+        :type to: int
+
+        :param type: Type of fixed timeframe.
+        :type type: DashboardFixedTimeframeType
+        """
+        super().__init__(kwargs)
+
+        self_._from = _from
+        self_.to = to
+        self_.type = type
diff --git a/src/datadog_api_client/v1/model/dashboard_fixed_timeframe_type.py b/src/datadog_api_client/v1/model/dashboard_fixed_timeframe_type.py
new file mode 100644
index 0000000000..415182e3c8
--- /dev/null
+++ b/src/datadog_api_client/v1/model/dashboard_fixed_timeframe_type.py
@@ -0,0 +1,35 @@
+# Unless explicitly stated otherwise all files in this repository are licensed under the Apache-2.0 License.
+# This product includes software developed at Datadog (https://www.datadoghq.com/).
+# Copyright 2019-Present Datadog, Inc.
+from __future__ import annotations
+
+
+from datadog_api_client.model_utils import (
+    ModelSimple,
+    cached_property,
+)
+
+from typing import ClassVar
+
+
+class DashboardFixedTimeframeType(ModelSimple):
+    """
+    Type of fixed timeframe.
+
+    :param value: If omitted defaults to "fixed". Must be one of ["fixed"].
+    :type value: str
+    """
+
+    allowed_values = {
+        "fixed",
+    }
+    FIXED: ClassVar["DashboardFixedTimeframeType"]
+
+    @cached_property
+    def openapi_types(_):
+        return {
+            "value": (str,),
+        }
+
+
+DashboardFixedTimeframeType.FIXED = DashboardFixedTimeframeType("fixed")
diff --git a/src/datadog_api_client/v1/model/dashboard_live_timeframe.py b/src/datadog_api_client/v1/model/dashboard_live_timeframe.py
new file mode 100644
index 0000000000..8d26802219
--- /dev/null
+++ b/src/datadog_api_client/v1/model/dashboard_live_timeframe.py
@@ -0,0 +1,60 @@
+# Unless explicitly stated otherwise all files in this repository are licensed under the Apache-2.0 License.
+# This product includes software developed at Datadog (https://www.datadoghq.com/).
+# Copyright 2019-Present Datadog, Inc.
+from __future__ import annotations
+
+from typing import TYPE_CHECKING
+
+from datadog_api_client.model_utils import (
+    ModelNormal,
+    cached_property,
+)
+
+
+if TYPE_CHECKING:
+    from datadog_api_client.v1.model.dashboard_live_timeframe_type import DashboardLiveTimeframeType
+    from datadog_api_client.v1.model.widget_live_span_unit import WidgetLiveSpanUnit
+
+
+class DashboardLiveTimeframe(ModelNormal):
+    validations = {
+        "value": {
+            "inclusive_minimum": 1,
+        },
+    }
+
+    @cached_property
+    def openapi_types(_):
+        from datadog_api_client.v1.model.dashboard_live_timeframe_type import DashboardLiveTimeframeType
+        from datadog_api_client.v1.model.widget_live_span_unit import WidgetLiveSpanUnit
+
+        return {
+            "type": (DashboardLiveTimeframeType,),
+            "unit": (WidgetLiveSpanUnit,),
+            "value": (int,),
+        }
+
+    attribute_map = {
+        "type": "type",
+        "unit": "unit",
+        "value": "value",
+    }
+
+    def __init__(self_, type: DashboardLiveTimeframeType, unit: WidgetLiveSpanUnit, value: int, **kwargs):
+        """
+        A live dashboard timeframe.
+
+        :param type: Type of live timeframe.
+        :type type: DashboardLiveTimeframeType
+
+        :param unit: Unit of the time span.
+        :type unit: WidgetLiveSpanUnit
+
+        :param value: Value of the live timeframe span.
+        :type value: int
+        """
+        super().__init__(kwargs)
+
+        self_.type = type
+        self_.unit = unit
+        self_.value = value
diff --git a/src/datadog_api_client/v1/model/dashboard_live_timeframe_type.py b/src/datadog_api_client/v1/model/dashboard_live_timeframe_type.py
new file mode 100644
index 0000000000..396f38b6d6
--- /dev/null
+++ b/src/datadog_api_client/v1/model/dashboard_live_timeframe_type.py
@@ -0,0 +1,35 @@
+# Unless explicitly stated otherwise all files in this repository are licensed under the Apache-2.0 License.
+# This product includes software developed at Datadog (https://www.datadoghq.com/).
+# Copyright 2019-Present Datadog, Inc.
+from __future__ import annotations
+
+
+from datadog_api_client.model_utils import (
+    ModelSimple,
+    cached_property,
+)
+
+from typing import ClassVar
+
+
+class DashboardLiveTimeframeType(ModelSimple):
+    """
+    Type of live timeframe.
+
+    :param value: If omitted defaults to "live". Must be one of ["live"].
+    :type value: str
+    """
+
+    allowed_values = {
+        "live",
+    }
+    LIVE: ClassVar["DashboardLiveTimeframeType"]
+
+    @cached_property
+    def openapi_types(_):
+        return {
+            "value": (str,),
+        }
+
+
+DashboardLiveTimeframeType.LIVE = DashboardLiveTimeframeType("live")
diff --git a/src/datadog_api_client/v1/models/__init__.py b/src/datadog_api_client/v1/models/__init__.py
index 85c9757ab5..8126d6f813 100644
--- a/src/datadog_api_client/v1/models/__init__.py
+++ b/src/datadog_api_client/v1/models/__init__.py
@@ -78,7 +78,10 @@
 from datadog_api_client.v1.model.dashboard_bulk_action_data import DashboardBulkActionData
 from datadog_api_client.v1.model.dashboard_bulk_action_data_list import DashboardBulkActionDataList
 from datadog_api_client.v1.model.dashboard_bulk_delete_request import DashboardBulkDeleteRequest
+from datadog_api_client.v1.model.dashboard_default_timeframe_setting import DashboardDefaultTimeframeSetting
 from datadog_api_client.v1.model.dashboard_delete_response import DashboardDeleteResponse
+from datadog_api_client.v1.model.dashboard_fixed_timeframe import DashboardFixedTimeframe
+from datadog_api_client.v1.model.dashboard_fixed_timeframe_type import DashboardFixedTimeframeType
 from datadog_api_client.v1.model.dashboard_global_time import DashboardGlobalTime
 from datadog_api_client.v1.model.dashboard_global_time_live_span import DashboardGlobalTimeLiveSpan
 from datadog_api_client.v1.model.dashboard_invite_type import DashboardInviteType
@@ -86,6 +89,8 @@
 from datadog_api_client.v1.model.dashboard_list import DashboardList
 from datadog_api_client.v1.model.dashboard_list_delete_response import DashboardListDeleteResponse
 from datadog_api_client.v1.model.dashboard_list_list_response import DashboardListListResponse
+from datadog_api_client.v1.model.dashboard_live_timeframe import DashboardLiveTimeframe
+from datadog_api_client.v1.model.dashboard_live_timeframe_type import DashboardLiveTimeframeType
 from datadog_api_client.v1.model.dashboard_reflow_type import DashboardReflowType
 from datadog_api_client.v1.model.dashboard_resource_type import DashboardResourceType
 from datadog_api_client.v1.model.dashboard_restore_request import DashboardRestoreRequest
@@ -1475,7 +1480,10 @@
     "DashboardBulkActionData",
     "DashboardBulkActionDataList",
     "DashboardBulkDeleteRequest",
+    "DashboardDefaultTimeframeSetting",
     "DashboardDeleteResponse",
+    "DashboardFixedTimeframe",
+    "DashboardFixedTimeframeType",
     "DashboardGlobalTime",
     "DashboardGlobalTimeLiveSpan",
     "DashboardInviteType",
@@ -1483,6 +1491,8 @@
     "DashboardList",
     "DashboardListDeleteResponse",
     "DashboardListListResponse",
+    "DashboardLiveTimeframe",
+    "DashboardLiveTimeframeType",
     "DashboardReflowType",
     "DashboardResourceType",
     "DashboardRestoreRequest",
diff --git a/tests/v1/cassettes/test_scenarios/test_create_a_new_dashboard_with_a_live_default_timeframe_returns_ok_response.frozen b/tests/v1/cassettes/test_scenarios/test_create_a_new_dashboard_with_a_live_default_timeframe_returns_ok_response.frozen
new file mode 100644
index 0000000000..cd5f7343ba
--- /dev/null
+++ b/tests/v1/cassettes/test_scenarios/test_create_a_new_dashboard_with_a_live_default_timeframe_returns_ok_response.frozen
@@ -0,0 +1 @@
+2026-06-22T17:48:02.651Z
\ No newline at end of file
diff --git a/tests/v1/cassettes/test_scenarios/test_create_a_new_dashboard_with_a_live_default_timeframe_returns_ok_response.yaml b/tests/v1/cassettes/test_scenarios/test_create_a_new_dashboard_with_a_live_default_timeframe_returns_ok_response.yaml
new file mode 100644
index 0000000000..c8bf8245fd
--- /dev/null
+++ b/tests/v1/cassettes/test_scenarios/test_create_a_new_dashboard_with_a_live_default_timeframe_returns_ok_response.yaml
@@ -0,0 +1,37 @@
+interactions:
+- request:
+    body: '{"default_timeframe":{"type":"live","unit":"hour","value":4},"layout_type":"ordered","title":"Test-Create_a_new_dashboard_with_a_live_default_timeframe_returns_OK_response-1782150482","widgets":[{"definition":{"background_color":"white","content":"test","font_size":"14","show_tick":false,"text_align":"left","tick_edge":"left","tick_pos":"50%","type":"note"}}]}'
+    headers:
+      accept:
+      - application/json
+      content-type:
+      - application/json
+    method: POST
+    uri: https://api.datadoghq.com/api/v1/dashboard
+  response:
+    body:
+      string: '{"id":"3v2-z74-apr","title":"Test-Create_a_new_dashboard_with_a_live_default_timeframe_returns_OK_response-1782150482","description":null,"author_handle":"9919ec9b-ebc7-49ee-8dc8-03626e717cca","author_name":"CI
+        Account","layout_type":"ordered","url":"/dashboard/3v2-z74-apr/test-createanewdashboardwithalivedefaulttimeframereturnsokresponse-1782150482","template_variables":null,"widgets":[{"definition":{"background_color":"white","content":"test","font_size":"14","show_tick":false,"text_align":"left","tick_edge":"left","tick_pos":"50%","type":"note"},"id":2716227217953845}],"notify_list":null,"created_at":"2026-06-22T17:48:02.860491+00:00","modified_at":"2026-06-22T17:48:02.860491+00:00","default_timeframe":{"type":"live","unit":"hour","value":4},"restricted_roles":[]}'
+    headers:
+      content-type:
+      - application/json
+    status:
+      code: 200
+      message: OK
+- request:
+    body: null
+    headers:
+      accept:
+      - application/json
+    method: DELETE
+    uri: https://api.datadoghq.com/api/v1/dashboard/3v2-z74-apr
+  response:
+    body:
+      string: '{"deleted_dashboard_id":"3v2-z74-apr"}'
+    headers:
+      content-type:
+      - application/json
+    status:
+      code: 200
+      message: OK
+version: 1
diff --git a/tests/v1/features/dashboards.feature b/tests/v1/features/dashboards.feature
index 932dc22b0b..fcdfaf309d 100644
--- a/tests/v1/features/dashboards.feature
+++ b/tests/v1/features/dashboards.feature
@@ -90,7 +90,7 @@ Feature: Dashboards
   @generated @skip @team:DataDog/dashboards-backend
   Scenario: Create a new dashboard returns "Bad Request" response
     Given new "CreateDashboard" request
-    And body with value {"description": null, "is_read_only": false, "layout_type": "ordered", "notify_list": [], "reflow_type": "auto", "restricted_roles": [], "tabs": [{"id": "", "name": "L", "widget_ids": [0]}], "tags": [], "template_variable_presets": [{"template_variables": [{"values": []}]}], "template_variables": [{"available_values": ["my-host", "host1", "host2"], "default": "my-host", "defaults": ["my-host-1", "my-host-2"], "name": "host1", "prefix": "host", "type": "group"}], "title": "", "widgets": [{"definition": {"requests": {"fill": {"q": "avg:system.cpu.user{*}"}}, "type": "hostmap"}}]}
+    And body with value {"default_timeframe": {"type": "live", "unit": "minute", "value": 4}, "description": null, "is_read_only": false, "layout_type": "ordered", "notify_list": [], "reflow_type": "auto", "restricted_roles": [], "tabs": [{"id": "", "name": "L", "widget_ids": [0]}], "tags": [], "template_variable_presets": [{"template_variables": [{"values": []}]}], "template_variables": [{"available_values": ["my-host", "host1", "host2"], "default": "my-host", "defaults": ["my-host-1", "my-host-2"], "name": "host1", "prefix": "host", "type": "group"}], "title": "", "widgets": [{"definition": {"requests": {"fill": {"q": "avg:system.cpu.user{*}"}}, "type": "hostmap"}}]}
     When the request is sent
     Then the response status is 400 Bad Request
 
@@ -171,6 +171,16 @@ Feature: Dashboards
     And the response "widgets[0].definition.requests[0].formulas[0].formula" is equal to "hour_before(query1)"
     And the response "widgets[0].definition.requests[0].formulas[1].formula" is equal to "query1"
 
+  @team:DataDog/dashboards-backend
+  Scenario: Create a new dashboard with a live default_timeframe returns "OK" response
+    Given new "CreateDashboard" request
+    And body with value {"title": "{{ unique }}", "layout_type": "ordered", "widgets": [{"definition": {"type": "note", "content": "test", "background_color": "white", "font_size": "14", "text_align": "left", "show_tick": false, "tick_pos": "50%", "tick_edge": "left"}}], "default_timeframe": {"type": "live", "unit": "hour", "value": 4}}
+    When the request is sent
+    Then the response status is 200 OK
+    And the response "default_timeframe.type" is equal to "live"
+    And the response "default_timeframe.unit" is equal to "hour"
+    And the response "default_timeframe.value" is equal to 4
+
   @team:DataDog/dashboards-backend
   Scenario: Create a new dashboard with a query value widget using the percentile aggregator
     Given new "CreateDashboard" request
@@ -1463,7 +1473,7 @@ Feature: Dashboards
   Scenario: Update a dashboard returns "Bad Request" response
     Given new "UpdateDashboard" request
     And request contains "dashboard_id" parameter from "REPLACE.ME"
-    And body with value {"description": null, "is_read_only": false, "layout_type": "ordered", "notify_list": [], "reflow_type": "auto", "restricted_roles": [], "tabs": [{"id": "", "name": "L", "widget_ids": [0]}], "tags": [], "template_variable_presets": [{"template_variables": [{"values": []}]}], "template_variables": [{"available_values": ["my-host", "host1", "host2"], "default": "my-host", "defaults": ["my-host-1", "my-host-2"], "name": "host1", "prefix": "host", "type": "group"}], "title": "", "widgets": [{"definition": {"requests": {"fill": {"q": "avg:system.cpu.user{*}"}}, "type": "hostmap"}}]}
+    And body with value {"default_timeframe": {"type": "live", "unit": "minute", "value": 4}, "description": null, "is_read_only": false, "layout_type": "ordered", "notify_list": [], "reflow_type": "auto", "restricted_roles": [], "tabs": [{"id": "", "name": "L", "widget_ids": [0]}], "tags": [], "template_variable_presets": [{"template_variables": [{"values": []}]}], "template_variables": [{"available_values": ["my-host", "host1", "host2"], "default": "my-host", "defaults": ["my-host-1", "my-host-2"], "name": "host1", "prefix": "host", "type": "group"}], "title": "", "widgets": [{"definition": {"requests": {"fill": {"q": "avg:system.cpu.user{*}"}}, "type": "hostmap"}}]}
     When the request is sent
     Then the response status is 400 Bad Request
 
@@ -1471,7 +1481,7 @@ Feature: Dashboards
   Scenario: Update a dashboard returns "Item Not Found" response
     Given new "UpdateDashboard" request
     And request contains "dashboard_id" parameter from "REPLACE.ME"
-    And body with value {"description": null, "is_read_only": false, "layout_type": "ordered", "notify_list": [], "reflow_type": "auto", "restricted_roles": [], "tabs": [{"id": "", "name": "L", "widget_ids": [0]}], "tags": [], "template_variable_presets": [{"template_variables": [{"values": []}]}], "template_variables": [{"available_values": ["my-host", "host1", "host2"], "default": "my-host", "defaults": ["my-host-1", "my-host-2"], "name": "host1", "prefix": "host", "type": "group"}], "title": "", "widgets": [{"definition": {"requests": {"fill": {"q": "avg:system.cpu.user{*}"}}, "type": "hostmap"}}]}
+    And body with value {"default_timeframe": {"type": "live", "unit": "minute", "value": 4}, "description": null, "is_read_only": false, "layout_type": "ordered", "notify_list": [], "reflow_type": "auto", "restricted_roles": [], "tabs": [{"id": "", "name": "L", "widget_ids": [0]}], "tags": [], "template_variable_presets": [{"template_variables": [{"values": []}]}], "template_variables": [{"available_values": ["my-host", "host1", "host2"], "default": "my-host", "defaults": ["my-host-1", "my-host-2"], "name": "host1", "prefix": "host", "type": "group"}], "title": "", "widgets": [{"definition": {"requests": {"fill": {"q": "avg:system.cpu.user{*}"}}, "type": "hostmap"}}]}
     When the request is sent
     Then the response status is 404 Item Not Found