Free planning tool
School Calendar Day Counter
Choose the date range and the weekdays when students attend. Add holidays, breaks, professional development days, and other closures that should not count.
Worksheet
Enter your details
Your result will appear here.
- 1Choose the calendar range
- 2Select instructional weekdays
- 3Paste excluded dates to get the final count
Before you use the result
What to know about this result
Verify the result against your adopted school calendar. This tool does not determine whether a date legally qualifies as an instructional day.
What date format should I use?
Enter one excluded date per line in YYYY-MM-DD format, such as 2026-11-26.
Can this count a four-day school week?
Yes. Select only the weekdays on which students normally attend.
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