diff --git a/src/app/core/services/edit/edit.service.ts b/src/app/core/services/edit/edit.service.ts
index e883a919f..3ca6bae26 100644
--- a/src/app/core/services/edit/edit.service.ts
+++ b/src/app/core/services/edit/edit.service.ts
@@ -662,4 +662,21 @@ export class EditService {
 				});
 		});
 	}
+
+	public async updateStelaRecord(record: RecordVO): Promise<void> {
+		const originalValue = record.displayTimeInEDTF;
+		try {
+			const response = await this.api.record.updateStelaRecord(record);
+			const updatedRecord = response.getRecordVO();
+			if (updatedRecord) {
+				record.update({
+					updatedDT: updatedRecord.updatedDT,
+				});
+			}
+		} catch (err) {
+			if (err instanceof RecordResponse) {
+				record.update({ displayTimeInEDTF: originalValue });
+			}
+		}
+	}
 }
diff --git a/src/app/models/record-vo.ts b/src/app/models/record-vo.ts
index d7f000f81..f44e85f8b 100644
--- a/src/app/models/record-vo.ts
+++ b/src/app/models/record-vo.ts
@@ -54,6 +54,7 @@ export class RecordVO
 	public description;
 	public displayDT;
 	public displayEndDT;
+	public displayTimeInEDTF;
 	public derivedDT;
 	public derivedEndDT;
 	public altText;
@@ -185,6 +186,7 @@ export interface RecordVOData extends BaseVOData {
 	description?: any;
 	displayDT?: any;
 	displayEndDT?: any;
+	displayTimeInEDTF?: any;
 	derivedDT?: any;
 	derivedEndDT?: any;
 	derivedCreatedDT?: any;
diff --git a/src/app/shared/services/api/record.repo.spec.ts b/src/app/shared/services/api/record.repo.spec.ts
index c610bc15b..6372617f6 100644
--- a/src/app/shared/services/api/record.repo.spec.ts
+++ b/src/app/shared/services/api/record.repo.spec.ts
@@ -221,4 +221,90 @@ describe('RecordRepo', () => {
 			expect(result).toEqual([]);
 		});
 	});
+
+	describe('updateStelaRecord', () => {
+		let httpV2PatchSpy: jasmine.Spy;
+		let httpSendRequestPromiseSpy: jasmine.Spy;
+
+		const fakeStelaRecord = {
+			recordId: 42,
+			displayName: 'Test Record',
+			archiveNumber: 'arch-1',
+			displayDate: '2025-01-01',
+			folderLinkId: '1',
+			folderLinkType: 'type.folder_link.private',
+			parentFolderLinkId: '2',
+			thumbUrl200: '',
+			thumbUrl500: '',
+			thumbUrl1000: '',
+			thumbUrl2000: '',
+			location: null,
+			files: [],
+			createdAt: '2025-01-01',
+			updatedAt: '2025-01-01',
+			archive: { id: '1', name: 'Archive', thumbURL200: '' },
+			shares: null,
+			tags: null,
+		};
+
+		beforeEach(() => {
+			httpV2PatchSpy = spyOn(httpV2Service, 'patch');
+			httpSendRequestPromiseSpy = spyOn(httpService, 'sendRequestPromise');
+		});
+
+		it('should send a PATCH request with displayTimeInEDTF', async () => {
+			const recordVO = new RecordVO({
+				recordId: 42,
+				displayTimeInEDTF: '1985-05-20',
+			});
+
+			httpV2PatchSpy.and.returnValue(of([fakeStelaRecord]));
+
+			const result = await repo.updateStelaRecord(recordVO);
+
+			expect(httpV2PatchSpy).toHaveBeenCalledWith('v2/records/42', {
+				displayTimeInEDTF: '1985-05-20',
+			});
+
+			expect(result).toBeInstanceOf(RecordResponse);
+		});
+
+		it('should look up recordId by archiveNbr when recordId is not available', async () => {
+			const recordVO = new RecordVO({
+				archiveNbr: 'archive-100',
+				displayTimeInEDTF: '2000-03',
+			});
+
+			httpSendRequestPromiseSpy.and.resolveTo({
+				getRecordVO: () => new RecordVO({ recordId: 99 }),
+			});
+			httpV2PatchSpy.and.returnValue(of([fakeStelaRecord]));
+
+			await repo.updateStelaRecord(recordVO);
+
+			expect(httpSendRequestPromiseSpy).toHaveBeenCalledWith(
+				'/record/get',
+				[{ RecordVO: jasmine.objectContaining({ archiveNbr: 'archive-100' }) }],
+				jasmine.any(Object),
+			);
+
+			expect(httpV2PatchSpy).toHaveBeenCalledWith('v2/records/99', {
+				displayTimeInEDTF: '2000-03',
+			});
+		});
+
+		it('should return a RecordResponse with converted record data', async () => {
+			const recordVO = new RecordVO({
+				recordId: 42,
+				displayTimeInEDTF: '1985-05',
+			});
+
+			httpV2PatchSpy.and.returnValue(of([fakeStelaRecord]));
+
+			const result = await repo.updateStelaRecord(recordVO);
+			const resultRecord = result.getRecordVO();
+
+			expect(resultRecord).toBeInstanceOf(RecordVO);
+		});
+	});
 });
diff --git a/src/app/shared/services/api/record.repo.ts b/src/app/shared/services/api/record.repo.ts
index f0c6b9eaa..108981a6d 100644
--- a/src/app/shared/services/api/record.repo.ts
+++ b/src/app/shared/services/api/record.repo.ts
@@ -474,6 +474,39 @@ export class RecordRepo extends BaseRepo {
 		);
 	}
 
+	public async updateStelaRecord(recordVO: RecordVO): Promise<RecordResponse> {
+		const recordId =
+			recordVO.recordId ??
+			(await this.getRecordIdByArchiveNbr(recordVO.archiveNbr));
+
+		// For now we only send displayTimeInEDTF. This will evolve until we can
+		// update the whole record using this method.
+		const stelaRecord = await firstValueFrom(
+			this.httpV2.patch<StelaRecord>(`v2/records/${recordId}`, {
+				displayTimeInEDTF: recordVO.displayTimeInEDTF,
+			}),
+		);
+
+		const simulatedV1RecordResponseResults = stelaRecord.map((record) => ({
+			data: [
+				{
+					RecordVO: convertStelaRecordToRecordVO(record),
+				},
+			],
+			message: ['Record updated'],
+			status: true,
+			resultDT: new Date().toISOString(),
+			createdDT: null,
+			updatedDT: null,
+		}));
+
+		return new RecordResponse({
+			isSuccessful: true,
+			isSystemUp: true,
+			Results: simulatedV1RecordResponseResults,
+		});
+	}
+
 	private getThumbnailCache(): ThumbnailCache {
 		const storage = new StorageService();
 		return new ThumbnailCache(storage);