We decided to extend the duration of the Halloween seasonal event:
Instead of the usual 3 days it will now last for 5 days, from 29th Oct to 2nd Nov.
(The exact start/end dates you will notice on your local clock could probably vary by up to 14 hours depending on your time zone and certain timings in the actual TomeNET server.)
If you're new to the Halloween event you can find a detailed explanation in the TomeNET guide, in chapter (4.13).