diff --git a/prepare.sh b/prepare.sh
index 5106b36..d6c0c91 100755
--- a/prepare.sh
+++ b/prepare.sh
@@ -50,5 +50,8 @@ done
 echo "Updating hostname"
 _ssh "sudo scutil --set HostName $VM_ID && sudo scutil --set ComputerName $VM_ID && sudo scutil --set LocalHostName $VM_ID && sudo defaults write /Library/Preferences/SystemConfiguration/com.apple.smb.server NetBIOSName -string $VM_ID"
 
+echo "Updating timezone to GMT"
+_ssh "sudo systemsetup -settimezone GMT"
+
 echo "Installing gitlab-runner for artifact uploads"
 _ssh "brew install gitlab-runner"