The time on the post is Renderosity time, Central Time in the US, it's always at the top of the page. Entries or links to entries are being posted in this thread, voting will be in the same place, see a previous challenge thread if you need an example.  I suppose that you could write or post in any language, but English is Renderosity's official language and most people can at least get along in it.   I'm not sure you would get many votes in another language since very few people would be able to read it.  That being said, it's not forbidden, but whatever language it is, it should conform to the Terms of Service.

Heads up!  The challenge will be closing soon, so get those last minute entries in!  Let me know if you need a bit more time to render.

~Viv

Fractals will always amaze me!