diff --git a/services/time_manager/src/time_zone_info.cpp b/services/time_manager/src/time_zone_info.cpp
index 1e70269..20e0ca4 100644
--- a/services/time_manager/src/time_zone_info.cpp
+++ b/services/time_manager/src/time_zone_info.cpp
@@ -142,9 +142,9 @@ bool TimeZoneInfo::GetTimezone(std::string &timezoneId)
 
 int64_t TimeZoneInfo::GetCurrentOffsetMs()
 {
-    int offsetHours;
+    int offsetHours = 0;
     GetOffsetById(curTimezoneId_, offsetHours);
-    return offsetHours * HOUR_TO_MILLISECONDS;
+    return static_cast<int64_t>(offsetHours) * HOUR_TO_MILLISECONDS;
 }
 
 bool TimeZoneInfo::SetOffsetToKernel(int offsetHour)