diff --git a/src/main.c b/src/main.c
index bc3f4f7..0f6de59 100644
--- a/src/main.c
+++ b/src/main.c
@@ -392,7 +392,7 @@ static void MX_RTC_Init(void)
   sTime.Seconds = 0;
   sTime.DayLightSaving = RTC_DAYLIGHTSAVING_NONE;
   sTime.StoreOperation = RTC_STOREOPERATION_RESET;
-  if (HAL_RTC_SetTime(&hrtc, &sTime, RTC_FORMAT_BIN) != HAL_OK)
+  if (HAL_RTC_SetTime(&hrtc, &sTime, RTC_FORMAT_BCD) != HAL_OK)
   {
     Error_Handler();
   }
@@ -401,7 +401,7 @@ static void MX_RTC_Init(void)
   sDate.Date = 1;
   sDate.Year = 0;
 
-  if (HAL_RTC_SetDate(&hrtc, &sDate, RTC_FORMAT_BIN) != HAL_OK)
+  if (HAL_RTC_SetDate(&hrtc, &sDate, RTC_FORMAT_BCD) != HAL_OK)
   {
     Error_Handler();
   }
@@ -420,7 +420,7 @@ static void MX_RTC_Init(void)
   sAlarm.AlarmDateWeekDaySel = RTC_ALARMDATEWEEKDAYSEL_DATE;
   sAlarm.AlarmDateWeekDay = 1;
   sAlarm.Alarm = RTC_ALARM_A;
-  if (HAL_RTC_SetAlarm_IT(&hrtc, &sAlarm, RTC_FORMAT_BIN) != HAL_OK)
+  if (HAL_RTC_SetAlarm_IT(&hrtc, &sAlarm, RTC_FORMAT_BCD) != HAL_OK)
   {
     Error_Handler();
   }