Count a weekday between two dates
Useful for counting weekly classes, the Fridays in a period or shift days on a set weekday.
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Processing and privacy: The result is calculated inside your browser and your data is not sent to any server.
How to use it
- Enter start date, end date and weekday.
- The result appears straight away and updates as you edit.
- Copy the result, or copy a link that keeps the same values to share it.
How it is calculated
Count = number of full weeks in the inclusive range + occurrences of the weekday in the leftover days.
Example
Inputs: Start date = 2026-10-01, End date = 2026-10-31, Weekday = Friday. Result: Number of Fridays: 5; Calendar days (inclusive): 31.
Limits and caveats
- Both the start and end dates are counted.
- It does not remove public holidays that fall on the chosen weekday.
Questions about this tool
How many Fridays are in a year?
Usually 52, or 53 when the year starts on a Friday, or on a Thursday in a leap year.
Are the start and end dates included?
Yes, if either one is the chosen weekday it is counted.
Does the order of the dates matter?
No, if the end comes first the tool swaps them for you.