Index: firmware/App/Services/AlarmMgmt.c
===================================================================
diff -u -r9d924ec76ce770eb2a94088bfe37bfb0e30981a8 -r2b7580660f89067dd78f91701dbd1a5b71bbdbba
--- firmware/App/Services/AlarmMgmt.c	(.../AlarmMgmt.c)	(revision 9d924ec76ce770eb2a94088bfe37bfb0e30981a8)
+++ firmware/App/Services/AlarmMgmt.c	(.../AlarmMgmt.c)	(revision 2b7580660f89067dd78f91701dbd1a5b71bbdbba)
@@ -73,7 +73,7 @@
 {
     ALARM_ID_T  alarmID;                        ///< ID of highest priority alarm in this priority category
     U32         subRank;                        ///< Sub-rank of this alarm
-    U32         timeSinceTriggeredMS;           ///< Time (in ms) since this alarm was triggered
+    S32         timeSinceTriggeredMS;           ///< Time (in ms) since this alarm was triggered
 } ALARM_PRIORITY_RANKS_T;
 
 /// Enumeration of alarm audio self-test states.
@@ -1264,7 +1264,7 @@
     {
         alarmPriorityFIFO[ priority ].alarmID = ALARM_ID_NO_ALARM;
         alarmPriorityFIFO[ priority ].subRank = LOWEST_ALARM_SUB_RANK;
-        alarmPriorityFIFO[ priority ].timeSinceTriggeredMS = 0;
+        alarmPriorityFIFO[ priority ].timeSinceTriggeredMS = -1;
     }
     else
     {