diff --git a/application.c b/application.c
index c4994a9..f6dd9fd 100644
--- a/application.c
+++ b/application.c
@@ -41,11 +41,7 @@
 /** set to 0 if the RTC is reset when the board is powered on, only indicates the uptime
  *  set to 1 if VBAT can keep the RTC running when the board is unpowered, indicating the date and time
  */
-#if defined(CORE_BOARD)
-#define RTC_DATE_TIME 1
-#else
 #define RTC_DATE_TIME 0
-#endif
 
 /** number of RTC ticks per second
  *  @note use integer divider of oscillator to keep second precision