The official dead line is 2015/01/31, 23h59 GTM (otherwise, tomorrow). But since I also live in GTM+1 and it will be 1h00AM and I'll can't end the contest.
The unofficial dead line will certainlybe arround 5~6h PM the next day (2015/02/01).
Otherwise, you should finish tomorrow before midnight but you'll have a few hours more to post or fix your entry.
I hope it's clear ^^
Oh, and were are you from to be in GTM+1?