I have written a new parser function for time and date formatting, called
#time. It is an interface to Language::sprintfDate, a function which I wrote
a few weeks ago to support internationalisation. Documentation is at:
http://meta.wikimedia.org/wiki/ParserFunctions#.23time
It allows things like {{#time:F|+2 hours}} to get the month name in CEST.
-- Tim Starling