This blew me away – Central Admin in SharePoint 2007 doesn’t have any ‘Regional Settings’. Now, at one level, this might make sense – perhaps you always want it to match, say, the server time, or UTC time. I’m not convinced, but it might make sense.
Make the format configurable, or use a standard format like ‘yyyy-mm-dd’. </rant>
I did find some solutions though – I particularly like the way that is transpires that the regional settings page is there, but that you have to enter the URL by hand…