Index: RTC.c
===================================================================
diff -u -r37aa2cb57a556ed608f2512850300340ce2b5369 -rf5f58ba4dd4247da495c8f6656b0cc61390df596
--- RTC.c	(.../RTC.c)	(revision 37aa2cb57a556ed608f2512850300340ce2b5369)
+++ RTC.c	(.../RTC.c)	(revision f5f58ba4dd4247da495c8f6656b0cc61390df596)
@@ -14,7 +14,7 @@
 * @date (original) 11-Jan-2020
 *
 ***************************************************************************/
-#include <time.h>         // For calculating epoch
+#include <time.h>         // For epoch conversion functions mktime and gmtime
 
 #include "Timers.h"
 #include "RTC.h"
@@ -207,6 +207,7 @@
 static U08  convertBCD2Decimal( U08 bcd );
 static U08  convertDecimal2BCD( U08 decimal );
 static U32  convertTime2Epoch( void );
+static void convertEpoch2Time( U32 epoch );
 static void updateReadTimestampStruct( void );
 static BOOL setMibSPIBufferLength( U16 length );
 static void prepBufferForReadCommand( U08 length );  // Puts the read command
@@ -240,7 +241,7 @@
     RTCServiceState  = RTC_SEND_COMMAND;
 }
 
- /*********************************************************************//**
+/*********************************************************************//**
  * @brief
  * The setRTCTimestamp gets the timestamp values from caller, converts them
  * into BCD format and inserts them into the txBuffer to be written into the RTC.
@@ -299,6 +300,29 @@
 }
 
 /*********************************************************************//**
+* @brief
+* The setRTCEpoch sets the clock from a given epoch.
+* @details Inputs: none
+* @details Outputs: RTCNewTimestampStruct
+* @param epoch date/time stamp epoch
+* @return TRUE if clock set, FALSE if not.
+*************************************************************************/
+BOOL setRTCEpoch( U32 epoch )
+{
+    BOOL result;
+
+    convertEpoch2Time( epoch );
+    result = setRTCTimestamp( RTCNewTimestampStruct.seconds,
+                              RTCNewTimestampStruct.minutes,
+                              RTCNewTimestampStruct.hours,
+                              RTCNewTimestampStruct.days,
+                              RTCNewTimestampStruct.months,
+                              RTCNewTimestampStruct.years);
+
+    return result;
+}
+
+/*********************************************************************//**
  * @brief
  * The execRTCSelfTest runs the RTC POST during the self-test.
  * @details Inputs: RTCSelfTestState
@@ -819,6 +843,32 @@
 
 /*********************************************************************//**
  * @brief
+ * The convertEpoch2Time converts a given epoch date/time to a date/time
+ * structure that can be used to set the clock.
+ * @details Inputs: none
+ * @details Outputs: RTCNewTimestampStruct
+ * @param epoch epoch time stamp (seconds since 1/1/1970)
+ * @return none
+ *************************************************************************/
+static void convertEpoch2Time( U32 epoch )
+{
+    struct tm *ptm;
+
+    // Convert epoch to C library equivalent
+    epoch -= YEAR_1900_TO_1970_SECONDS_DIFF;
+    // Convert epoch to date/time structure
+    ptm = gmtime( &epoch );
+    // Copy date/time stamp to our structure
+    RTCNewTimestampStruct.years = ptm->tm_year;
+    RTCNewTimestampStruct.months = ptm->tm_mon;
+    RTCNewTimestampStruct.days = ptm->tm_mday;
+    RTCNewTimestampStruct.hours = ptm->tm_hour;
+    RTCNewTimestampStruct.minutes = ptm->tm_min;
+    RTCNewTimestampStruct.seconds = ptm->tm_sec;
+}
+
+/*********************************************************************//**
+ * @brief
  * The updateReadTimestampStruct function updates the time structure
  * after every read.
  * @details Inputs: RTCTimestampStruct
Index: RTC.h
===================================================================
diff -u -r7ff7e715f7a15da5f4055b33e186d58cf96fe909 -rf5f58ba4dd4247da495c8f6656b0cc61390df596
--- RTC.h	(.../RTC.h)	(revision 7ff7e715f7a15da5f4055b33e186d58cf96fe909)
+++ RTC.h	(.../RTC.h)	(revision f5f58ba4dd4247da495c8f6656b0cc61390df596)
@@ -54,6 +54,7 @@
 void execRTC( void );
 
 BOOL setRTCTimestamp( U08 secs, U08 mins, U08 hours, U08 days, U08 months, U32 years );
+BOOL setRTCEpoch( U32 epoch );
 
 U32  getRTCTimestamp( void );