diff --git a/build-7z.cmd b/build-7z.cmd
index 42b63219..991e3669 100644
--- a/build-7z.cmd
+++ b/build-7z.cmd
@@ -9,7 +9,7 @@ call npm run production
 cd ..
 mklink /J "%~dp0\bin\x64\Release\html" "%~dp0\html\dist"
 setlocal
-set TODAY=%DATE:~0,4%%DATE:~5,2%%DATE:~8,2%
+for /f %%a in ('powershell -Command "Get-Date -format yyyyMMdd"') do set TODAY=%%a
 set ZIP_NAME=VRCX_%TODAY%.zip
 echo %ZIP_NAME%
 rem using 7-Zip (https://www.7-zip.org)
diff --git a/build.cmd b/build.cmd
index 915088f9..3703fe58 100644
--- a/build.cmd
+++ b/build.cmd
@@ -8,7 +8,7 @@ call npm run production
 cd ..
 mklink /J "%~dp0\bin\x64\Release\html" "%~dp0\html\dist"
 setlocal
-set TODAY=%DATE:~0,4%%DATE:~5,2%%DATE:~8,2%
+for /f %%a in ('powershell -Command "Get-Date -format yyyyMMdd"') do set TODAY=%%a
 set ZIP_NAME=VRCX_%TODAY%.zip
 echo %ZIP_NAME%
 rem using bandizip (https://www.bandisoft.com/bandizip)
diff --git a/make-zip-7z.cmd b/make-zip-7z.cmd
index 87b51b4e..d2856eac 100644
--- a/make-zip-7z.cmd
+++ b/make-zip-7z.cmd
@@ -1,6 +1,5 @@
 @echo off
-for /f %%a in ('wmic os get LocalDateTime ^| find "."') do set DTS=%%a
-set TODAY=%DTS:~0,4%%DTS:~4,2%%DTS:~6,2%
+for /f %%a in ('powershell -Command "Get-Date -format yyyyMMdd"') do set TODAY=%%a
 set ZIP_NAME=VRCX_%TODAY%.zip
 echo %ZIP_NAME%
 rem using 7-Zip (https://www.7-zip.org)
diff --git a/make-zip.cmd b/make-zip.cmd
index 2bc70f70..02749c67 100644
--- a/make-zip.cmd
+++ b/make-zip.cmd
@@ -1,6 +1,6 @@
 @echo off
 setlocal
-set TODAY=%DATE:~0,4%%DATE:~5,2%%DATE:~8,2%
+for /f %%a in ('powershell -Command "Get-Date -format yyyyMMdd"') do set TODAY=%%a
 set ZIP_NAME=VRCX_%TODAY%.zip
 echo %ZIP_NAME%
 rem using bandizip (https://www.bandisoft.com/bandizip)