diff --git a/src/modules/04_system/components/02_cardAutoBackup.vue b/src/modules/04_system/components/02_cardAutoBackup.vue
index 54a28e0d..3d350805 100644
--- a/src/modules/04_system/components/02_cardAutoBackup.vue
+++ b/src/modules/04_system/components/02_cardAutoBackup.vue
@@ -34,6 +34,7 @@ const {
   dialogConfirm,
   dialogMessageNotify,
   onSearchDataTable,
+  convertDatetimeToAPI,
 } = useCounterMixin();
 const {
   getSchedule,
@@ -64,6 +65,7 @@ const formDataschedule = ref<ScheduleCreate>({
   name: "",
   time: "",
   schedule: "",
+  startAt: new Date(),
 });
 
 /**
@@ -203,10 +205,16 @@ function onSubmit() {
     dialogConfirm($q, async () => {
       showLoader();
       if (typeOnSubmit.value === "create") {
-        await createSchedule(formDataschedule.value);
+        await createSchedule({
+          ...formDataschedule.value,
+          startAt: convertDatetimeToAPI(formDataschedule.value.startAt as Date),
+        });
       }
       if (typeOnSubmit.value === "edit") {
-        await editSchedule(idEditSchedule.value, formDataschedule.value);
+        await editSchedule(idEditSchedule.value, {
+          ...formDataschedule.value,
+          startAt: convertDatetimeToAPI(formDataschedule.value.startAt as Date),
+        });
       }
       getSchedule();
       hideLoader();
@@ -476,7 +484,7 @@ onMounted(async () => {
 
         if (formDataschedule.startAt !== undefined) {
           formDataschedule.startAt = new Date(
-            formDataschedule.startAt
+            formDataschedule.startAt as Date
           ).toISOString();
         }
         convertFormToCron();
diff --git a/src/modules/04_system/interface/request/Main.ts b/src/modules/04_system/interface/request/Main.ts
index 7e46d026..5d9adc07 100644
--- a/src/modules/04_system/interface/request/Main.ts
+++ b/src/modules/04_system/interface/request/Main.ts
@@ -7,7 +7,7 @@ interface ScheduleCreate {
   type: string;
   date: string[];
   schedule: string;
-  startAt?: string;
+  startAt?: Date|null|string;
   enabled?: boolean;
 }
 
diff --git a/src/stores/mixin.ts b/src/stores/mixin.ts
index 42e969e6..f40719f7 100644
--- a/src/stores/mixin.ts
+++ b/src/stores/mixin.ts
@@ -3,6 +3,7 @@ import "moment/dist/locale/th";
 import moment from "moment";
 import CustomComponent from "@/components/CustomDialog.vue";
 import { Loading, QSpinnerCube } from "quasar";
+import { format, utcToZonedTime } from "date-fns-tz";
 
 moment.locale("th");
 
@@ -1078,6 +1079,20 @@ export const useCounterMixin = defineStore("mixin", () => {
     });
   }
 
+  // กรณีมีเฉพาะ date
+  function convertDateToAPI(date: Date | null) {
+    return date
+      ? format(utcToZonedTime(date, "Asia/Bangkok"), "yyyy-MM-dd")
+      : null;
+  }
+
+  // กรณี datetime
+  function convertDatetimeToAPI(date: Date | null) {
+    return date
+      ? format(utcToZonedTime(date, "Asia/Bangkok"), "yyyy-MM-dd HH:mm:ss")
+      : null;
+  }
+
   return {
     calAge,
     date2Thai,
@@ -1121,5 +1136,8 @@ export const useCounterMixin = defineStore("mixin", () => {
     findPosMasterNoOld,
 
     onSearchDataTable,
+
+    convertDateToAPI,
+    convertDatetimeToAPI,
   };
 });