Index: firmware/App/HDCommon.h
===================================================================
diff -u -re38dca5b9b1159d70ed7b1a5d4a08059294e2dda -r01786fffdc8977718bce338a996ec982880942a3
--- firmware/App/HDCommon.h	(.../HDCommon.h)	(revision e38dca5b9b1159d70ed7b1a5d4a08059294e2dda)
+++ firmware/App/HDCommon.h	(.../HDCommon.h)	(revision 01786fffdc8977718bce338a996ec982880942a3)
@@ -37,9 +37,10 @@
 //    #define RUN_WITHOUT_DG                  1           // Run HD w/o DG
 //    #define SIMULATE_UI                     1           // Build w/o requirement that UI be there
 //    #define TASK_TIMING_OUTPUT_ENABLED      1           // Re-purposes alarm lamp pins for task timing
-//    #define DISABLE_ALARM_AUDIO             1           // Disable alarm audio
+    #define DISABLE_ALARM_AUDIO             1           // Disable alarm audio
     #define SKIP_POST                       1           // Skip POST tests - all pass
     #define DONT_SKIP_NV_POST               1           // Do not skip NV Data POST
+//    #define USE_LIBRARY_TIME_FUNCTIONS      1           // Use the C library functions mktime() and gmtime() for epoch<=>date conversions
     #define DISABLE_AIR_TRAP_LEVELING_ALARM 1           // Disable air trap level control alarms
 //    #define DISABLE_3WAY_VALVES             1           // Disable 3-way valves
 //    #define TST_3WAY_VALVES_ALWAYS_OPEN     1           // After POST and homing, open all 4 valves