diff --git a/Services/CMSCandidateService.cs b/Services/CMSCandidateService.cs
index 5136ed5..a5433d5 100644
--- a/Services/CMSCandidateService.cs
+++ b/Services/CMSCandidateService.cs
@@ -342,11 +342,11 @@ namespace BMA.EHR.Recurit.Exam.Service.Services
                                 Id = x.Id.ToString(),
                                 Category = "doctor",
                                 Category_id = "doctor",
-                                Start = x.ExamDate.ToString("MM-dd-yyyy"),
-                                End = x.ExamDate.ToString("MM-dd-yyyy"),
-                                Exam_date = x.ExamDate.ToString("MM-dd-yyyy"),
-                                Announcement_date = x.AnnouncementStartDate.ToString("MM-dd-yyyy"),
-                                Announcement_endDate = x.AnnouncementEndDate.ToString("MM-dd-yyyy"),
+                                Start = x.ExamDate.ToString("yyyy-MM-dd"),
+                                End = x.ExamDate.ToString("yyyy-MM-dd"),
+                                Exam_date = x.ExamDate.ToString("yyyy-MM-dd"),
+                                Announcement_date = x.AnnouncementStartDate.ToString("yyyy-MM-dd"),
+                                Announcement_endDate = x.AnnouncementEndDate.ToString("yyyy-MM-dd"),
                                 Title = x.Name,
                                 Image = x.PeriodExamImages.OrderBy(o => o.CreatedAt).FirstOrDefault() == null ?
                                             "" :
@@ -381,8 +381,8 @@ namespace BMA.EHR.Recurit.Exam.Service.Services
                                 Id = x.Id.ToString(),
                                 Category = "doctor",
                                 Category_id = "doctor",
-                                Start = x.AnnouncementStartDate.ToString("MM-dd-yyyy"),
-                                End = x.AnnouncementEndDate.ToString("MM-dd-yyyy"),
+                                Start = x.AnnouncementStartDate.ToString("yyyy-MM-dd"),
+                                End = x.AnnouncementEndDate.ToString("yyyy-MM-dd"),
                                 Title = x.Name,
                                 Detail = x.Detail,
                                 Images = x.PeriodExamImages.Select(s => new HomePageLinkResponseItem