diff --git a/nebula_decoders/include/nebula_decoders/nebula_decoders_hesai/decoders/hesai_packet.hpp b/nebula_decoders/include/nebula_decoders/nebula_decoders_hesai/decoders/hesai_packet.hpp
index d47a21b0c..730888c91 100644
--- a/nebula_decoders/include/nebula_decoders/nebula_decoders_hesai/decoders/hesai_packet.hpp
+++ b/nebula_decoders/include/nebula_decoders/nebula_decoders_hesai/decoders/hesai_packet.hpp
@@ -56,7 +56,7 @@ struct DateTime
     tm.tm_hour = hour;
     tm.tm_min = minute;
     tm.tm_sec = second;
-    return std::mktime(&tm);
+    return timegm(&tm);
   }
 };