diff --git a/services/utils/time_format_utils.cpp b/services/utils/time_format_utils.cpp
index f22b34eaf06c24222b8b24f84c23d83b1747d17b..769532dd8f86fd65c75b93328bce7ea48b2985ea 100644
--- a/services/utils/time_format_utils.cpp
+++ b/services/utils/time_format_utils.cpp
@@ -41,6 +41,7 @@ std::string TimeFormatUtils::FormatDateTimeByTimeZone(const std::string &iso8601
 
     std::istringstream iss(iso8601Str);
     std::tm tm;
+    tm.tm_isdst = -1;
     if (!(iss >> std::get_time(&tm, "%Y-%m-%dT%H:%M:%S"))) {
         return iso8601Str;  // cant prase time
     }