In Webmin -> Hardward -> System Time, the tabs for Change Timezome and Time Server Sync pages are blank. This is on all my Virtualmin servers. They are with Linode so are likely VPS's or similar.
I dont know if its related but I have a newsletter system that uses cron and it keeps saying my cron job has not run for the past 3 times (but i think the cron job is running). It does then send newsletters about 2 hours later, hence me investigating timezone issues. I have changed the timezone to BST in the command line by symlinking localtime to Europe/London: ln -sf /usr/share/zoneinfo/Europe/London /etc/localtime
But my newsletter system has some strange things going on with cron and times. It worked Ok in the old server (just moved it to this Virtualmin server last night).