diff --git a/CHANGELOG.md b/CHANGELOG.md
index e258dd394..7e7d798c2 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,9 @@
 
 All notable changes to the ZSS package will be documented in this file.
 
+## `2.16.0`
+- Bugfix: AUX should take leap seconds into account in their log messages' timestamp (#690, #691)
+
 ## `2.14.0`
 - Bugfix: ZSS would not use zowe.cookieIdentifier when an HA config was used.
 
diff --git a/deps/zowe-common-c b/deps/zowe-common-c
index c723503bb..c96b84cec 160000
--- a/deps/zowe-common-c
+++ b/deps/zowe-common-c
@@ -1 +1 @@
-Subproject commit c723503bbd4b740bd3ceefd9c6eaee98a221cd3a
+Subproject commit c96b84cecc51ae1e5ea61f1a797e74a97d128cda
diff --git a/zis-aux/src/aux-utils.c b/zis-aux/src/aux-utils.c
index db2210163..b2386d606 100644
--- a/zis-aux/src/aux-utils.c
+++ b/zis-aux/src/aux-utils.c
@@ -199,19 +199,27 @@ static void getSTCK(uint64 *stckValue) {
   __asm(" STCK 0(%0)" : : "r"(stckValue));
 }
 
-static int64 getLocalTimeOffset() {
+static int64 getLocalTimeOffset(void) {
   CVT * __ptr32 cvt = *(void * __ptr32 * __ptr32)0x10;
   void * __ptr32 cvtext2 = cvt->cvtext2;
   int64 *cvtldto = (int64 * __ptr32)(cvtext2 + 0x38);
   return *cvtldto;
 }
 
+static int64 getLeapSecondsOffset(void) {
+  CVT * __ptr32 cvt = *(void * __ptr32 * __ptr32)0x10;
+  void * __ptr32 cvtext2 = cvt->cvtext2;
+  int64 *cvtlso = (int64 * __ptr32)(cvtext2 + 0x50);
+  return *cvtlso;
+}
+
 static void getCurrentLogTimestamp(LogTimestamp *timestamp) {
 
   uint64 stck = 0;
   getSTCK(&stck);
 
   stck += getLocalTimeOffset();
+  stck -= getLeapSecondsOffset();
 
   stckToLogTimestamp(stck, timestamp);