How Many Days Until Halloween? 27 Days Left on Oct. 4

Halloween is 27 days out, which is three weeks and six days from a Sunday. Twenty of the remaining days are weekdays, seven are weekend days, and three Saturdays come before the holiday itself on October 31.

For anyone organizing something at work, the number that matters is smaller than 27. Halloween falls on a Saturday, so no office will mark it on the day. The last working day before it is Friday, October 30, and that is the date your event will land on whether or not anyone planned for it.

Twenty days of working time, and one deadline

There are 20 weekdays between now and the holiday, but the office event consumes only the working days that precede October 30. An announcement needs about two weeks of lead time to be useful, which puts it in the week of October 12. Anything ordered, printed or catered needs to be booked before that.

Two things go wrong when this is left late. A costume contest announced on October 27 gets a handful of participants and a slightly embarrassed atmosphere. A food order placed in the final week gets whatever the supplier has left, which in late October is not much.

Judging, food and the awkward parts

Give the contest a fixed judging time rather than an open block. An event described as happening in the afternoon does not happen, because everyone waits for someone else to begin. Categories work better than a single prize, and the categories should be broad enough that a person in ordinary clothes can enter without feeling like a joke.

Food is simpler than most organizers make it. Pick one thing and provide it rather than running an open potluck, which reliably produces six desserts and no lunch. Ask about allergies instead of assuming, label anything homemade, and keep a non-alcoholic option visible if alcohol is present.

One practical detail belongs in the invitation itself. A start time and an end time, written down, cut the number of guests who arrive an hour late and the number who never leave. An end time is not rude. It is the reason a host can enjoy the last hour rather than standing in a kitchen at midnight.

The last item on the list is the one most often forgotten. Decide what happens to the pumpkins and the leftovers on Friday afternoon, because an office that leaves a break room full of decorations over a weekend hands the problem to whoever unlocks the door on Monday.