diff --git a/tools/update_buildinfo.sh b/tools/update_buildinfo.sh
index 19aed018..5b2f1b7c 100755
--- a/tools/update_buildinfo.sh
+++ b/tools/update_buildinfo.sh
@@ -7,7 +7,7 @@ BUILD_DATE="$(date "+%Y-%m-%d %H:%M")"
 COMMIT_ID="$(git rev-parse HEAD)"
 BRANCH="$(git rev-parse --abbrev-ref HEAD | sed -r 's/[\/\\]+/_/g')"
 RELEASE="$(git describe --tags --long | sed -r 's/(.*)-(.*)-.*/\1 +\2/g' | sed 's/ +0$//')"
-RELEASE_DTS=$(git show -s --format=%cd --date=format:"%Y%m%d%H%M" HEAD)
+RELEASE_DTS=$(TZ=UTC git show --quiet --date=format-local:"%Y%m%d%H%M" --format="%cd" HEAD)
 
 MODULES=$(awk '/^[ \t]*#define LUA_USE_MODULES/{modules=modules sep tolower(substr($2,17));sep=","}END{if(length(modules)==0)modules="-";print modules}' $USER_MODULES_H | tr -d '\r')