Date Difference Calculator
Days, weeks and business days between two dates.
Runs entirely in your browser. Nothing you type is uploaded.
About this tool
Pick two dates and get the number of days between them, the same span in whole weeks plus leftover days, and the count of Monday-to-Friday business days. Public holidays are not excluded, since they differ by country.
Questions & answers
- Are both end dates counted?
- The day count is the difference between the two dates, so the start date itself is not counted. Business days count each weekday strictly after the start date up to and including the end date.
- Are public holidays excluded?
- No — only Saturdays and Sundays. Holiday calendars differ by country, so use DateLab if you need Japanese public holidays excluded.
- Does this tool send my data to a server?
- Runs entirely in your browser. Nothing you type is uploaded.
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Need the full version? DateLab goes much deeper on this topic.