diff --git a/src/app/api/timesheets/utils.ts b/src/app/api/timesheets/utils.ts
index 2ecca5f..be9e782 100644
--- a/src/app/api/timesheets/utils.ts
+++ b/src/app/api/timesheets/utils.ts
@@ -1,7 +1,7 @@
 import { getPublicHolidaysForNYears } from "@/app/utils/holidayUtils";
 import { HolidaysResult } from "../holidays";
 import { LeaveEntry, RecordTimeLeaveInput, TimeEntry } from "./actions";
-import { convertDateArrayToString } from "@/app/utils/formatUtil";
+import { INPUT_DATE_FORMAT, convertDateArrayToString } from "@/app/utils/formatUtil";
 import compact from "lodash/compact";
 import dayjs, { Dayjs } from "dayjs";
 import isSameOrAfter from "dayjs/plugin/isSameOrAfter";
@@ -93,7 +93,7 @@ export const validateTimeLeaveRecord = (
   const holidays = new Set(
     compact([
       ...getPublicHolidaysForNYears(2).map((h) => h.date),
-      ...companyHolidays.map((h) => convertDateArrayToString(h.date)),
+      ...companyHolidays.map((h) => convertDateArrayToString(h.date, INPUT_DATE_FORMAT)),
     ]),
   );