diff --git a/front/src/applications/stdcm/types.ts b/front/src/applications/stdcm/types.ts
index 92b97198638..746ce92658d 100644
--- a/front/src/applications/stdcm/types.ts
+++ b/front/src/applications/stdcm/types.ts
@@ -183,7 +183,7 @@ export type StdcmLinkedTrainExtremity = {
   ch: string;
   date: string;
   geographic: GeoJsonPoint;
-  isoArrivalTime: string;
+  arrivalDate: Date;
   name: string;
   obj_id: string;
   time: string;
diff --git a/front/src/applications/stdcm/utils/computeOpSchedules.ts b/front/src/applications/stdcm/utils/computeOpSchedules.ts
index 1db0abe9824..3a858f178be 100644
--- a/front/src/applications/stdcm/utils/computeOpSchedules.ts
+++ b/front/src/applications/stdcm/utils/computeOpSchedules.ts
@@ -29,12 +29,12 @@ const computeOpSchedules = (startTime: Date, msFromStartTime: number) => {
     origin: {
       date: originDate,
       time: originTime,
-      isoArrivalTime: subtractDurationFromDate(startTime, 1800).toISOString(),
+      arrivalDate: subtractDurationFromDate(startTime, 1800),
     },
     destination: {
       date: destinationDate,
       time: destinationTime,
-      isoArrivalTime: addDurationToDate(destinationArrivalTime, 1800).toISOString(),
+      arrivalDate: addDurationToDate(destinationArrivalTime, 1800),
     },
   };
 };
diff --git a/front/src/reducers/osrdconf/stdcmConf/index.ts b/front/src/reducers/osrdconf/stdcmConf/index.ts
index 6aabba35637..10c589d6b2b 100644
--- a/front/src/reducers/osrdconf/stdcmConf/index.ts
+++ b/front/src/reducers/osrdconf/stdcmConf/index.ts
@@ -200,14 +200,15 @@ export const stdcmConfSlice = createSlice({
       }>
     ) {
       const { linkedTrainExtremity, trainName, pathStep, pathStepId } = action.payload;
-      const { name, ch, uic, geographic, isoArrivalTime, date, time } = pathStep;
+      const { name, ch, uic, geographic, arrivalDate, date, time } = pathStep;
+
       const newPathStep = {
         name,
         ch,
         id: pathStepId,
         uic,
         coordinates: geographic.coordinates,
-        arrival: isoArrivalTime,
+        arrival: arrivalDate,
         ...(linkedTrainExtremity === 'origin' && { arrivalType: ArrivalTimeTypes.PRECISE_TIME }),
       };