diff --git a/frontend/src/interfaces/uiConfig.ts b/frontend/src/interfaces/uiConfig.ts
index 7ccf976eeb..9a873673ee 100644
--- a/frontend/src/interfaces/uiConfig.ts
+++ b/frontend/src/interfaces/uiConfig.ts
@@ -92,6 +92,7 @@ export type UiFlags = {
     crDiffView?: boolean;
     changeRequestApproverEmails?: boolean;
     eventGrouping?: boolean;
+    timestampsInChangeRequestTimeline?: boolean;
     reportUnknownFlags?: boolean;
     lifecycleGraphs?: boolean;
 };
diff --git a/src/lib/types/experimental.ts b/src/lib/types/experimental.ts
index 9fb52ba978..3217aaa06f 100644
--- a/src/lib/types/experimental.ts
+++ b/src/lib/types/experimental.ts
@@ -63,6 +63,7 @@ export type IFlagKey =
     | 'paygTrialEvents'
     | 'eventGrouping'
     | 'paygInstanceStatsEvents'
+    | 'timestampsInChangeRequestTimeline'
     | 'lifecycleGraphs';
 
 export type IFlags = Partial<{ [key in IFlagKey]: boolean | Variant }>;
@@ -291,6 +292,10 @@ const flags: IFlags = {
         process.env.UNLEASH_EXPERIMENTAL_PAYG_INSTANCE_STATS_EVENTS,
         false,
     ),
+    timestampsInChangeRequestTimeline: parseEnvVarBoolean(
+        process.env.UNLEASH_EXPERIMENTAL_TIMESTAMPS_IN_CHANGE_REQUEST_TIMELINE,
+        false,
+    ),
     lifecycleGraphs: parseEnvVarBoolean(
         process.env.UNLEASH_EXPERIMENTAL_LIFECYCLE_GRAPHS,
         false,
diff --git a/src/server-dev.ts b/src/server-dev.ts
index 4b9d10a5ff..579bce6495 100644
--- a/src/server-dev.ts
+++ b/src/server-dev.ts
@@ -59,6 +59,7 @@ process.nextTick(async () => {
                         crDiffView: true,
                         eventGrouping: true,
                         paygTrialEvents: true,
+                        timestampsInChangeRequestTimeline: true,
                         lifecycleGraphs: true,
                     },
                 },