You can now disable the deadline for event signups

With event signups, you can set a signup deadline (as well as a maximum number of signups, if desired).

However, you cannot set a signup deadline after the event; this rule is meant to prevent problems for users who rely on having the signup deadline enforced relative to the start time of the event. (For all-day events, the start time is considered to be 12:00am.)

However, we've had many requests for the ability to update the list of signups after an event has taken place. Our latest update makes this possible: You can now disable the signup deadline altogether. 

You can disable the signup deadline for individual events in the event editor:

👩‍💻 Calendar admins: You can also disable the signup deadline for all future events in Settings > Event Fields > Signups.

With the deadline disabled, you can allow participants to signup at anytime during an event. You can also add signups to the list after an event for your own records.