diff --git a/kernel/time.c b/kernel/time.c
index f8342a41efa6..effac571589f 100644
--- a/kernel/time.c
+++ b/kernel/time.c
@@ -138,13 +138,14 @@ int persistent_clock_is_local;
  */
 static inline void warp_clock(void)
 {
-	struct timespec adjust;
+	if (sys_tz.tz_minuteswest != 0) {
+		struct timespec adjust;
 
-	adjust = current_kernel_time();
-	if (sys_tz.tz_minuteswest != 0)
 		persistent_clock_is_local = 1;
-	adjust.tv_sec += sys_tz.tz_minuteswest * 60;
-	do_settimeofday(&adjust);
+		adjust = current_kernel_time();
+		adjust.tv_sec += sys_tz.tz_minuteswest * 60;
+		do_settimeofday(&adjust);
+	}
 }
 
 /*