Answers · Original research

The best time to send a signup sheet

People respond to signup sheets most on weekdays, peaking Monday and in the late morning, and the pace stays high through the afternoon and evening. The weekend is the slowest stretch of the week.

By Brent Chudoba · Published August 2026 · Based on 329,459 real signups

We looked at 329,459 real signups collected on Grasshopper Signup between December 2024 and August 2026, of which 253,503 carry a form timezone we can read a local clock from. Most signup advice is about how to build a sheet. This is about when people actually fill one out.

Weekdays win, and Monday leads

About 83% of signups arrive Monday through Friday. Monday is the single busiest day, and Monday through Wednesday together carry the bulk of the week. Saturday and Sunday are the quietest days, together about 17% of all signups. Day of week is the most reliable pattern in the data, so it is the one to plan around: put your sheet in front of people early in the week, not over the weekend.

A late-morning-to-midday peak, quiet overnight

Signups build through the morning, run high from late morning to early evening, and fall away after 10pm. Roughly 78% arrive between 9am and 10pm. The busiest stretch is late morning through midday. There is no one magic minute, so think in windows: a weekday late-morning send lands right as the daily rhythm picks up.

How to use this when you send a reminder

This shows when signups happen, which is partly when people are free and partly when organizers send and remind. The practical read is about timing your nudge:

  • Send and remind on a weekday, late morning. That is when the most people are already in the habit of responding.
  • Use the evening as a second window. Signups stay strong until about 10pm.
  • Favor the front half of the week. The weekend is the slowest stretch, so a Monday-to-Wednesday send reaches more people than a Friday or Saturday one.

For more on timing reminders and cutting no-shows, see why people don't sign up and how to reduce no-shows.

Build a signup people actually respond to

Grasshopper Signup forms need no account from the people responding, work on any phone, and can send reminders for you, so a well-timed reminder is easy to schedule.

Create a free signup form

How we measured this

The dataset is 329,459 non-test signups collected on Grasshopper Signup between December 9, 2024 and August 20, 2026. Of those, 253,503 (77%) come from forms with a known timezone, which we use to convert each signup to its local time; that set is the basis for the day and time figures. Day of week is reliable, since a few hours of timezone difference rarely crosses midnight. Time of day we report in three- to four-hour windows rather than exact hours, and we read the peak as late morning: a known quirk in how some forms record their timezone nudges part of the mid-morning volume into the midday block, so the exact-hour reading runs a little late. These figures reflect when responses arrive, which is the signal you want for deciding when to send and remind.