Security release scheduling

[stenn at nwtime.org (Harlan Stenn)]

I'm looking for some general "calendar" help to use for our security
release scheduling process.  Something that usefully accounts for
clients all over the world.

By "usefully accounts" I mean that we want to be able to have reasonable
confidence that we're not going to pick a public release date that is a
national holiday for one country, and we're also not going to avoid a
date because it's "let's order pizza" day somewhere else, but the
purpose of the holiday is obscured because of language translation issues.

I figure this is something others must have solved, and I'm hoping some
folks on this list might be able to offer me some pointers.
-- 
Harlan Stenn <stenn at nwtime.org>
http://networktimefoundation.org - be a member!