As of now, everyone has until Midnight TONIGHT to submit their entry. Specifically Midnight of the 30th. I will accept entries right up until the stroke of 12:01. The contest ends on the 1st of May.

That is the OBJECTIVE first of May, to answer [@Dark Wind]'s inquiry. I.E., the first of May for the entire Earth, and not merely the UK or USA. This is to give everybody as much time as possible to finish their entries without actually extending the deadline. 

Approximately 24 hours remain.