Days Between Dates
Calculate how many days are between two calendar dates. Useful for planning, deadlines, projects, and date tracking.
Privacy: calculations run entirely in your browser. No dates are stored or transmitted.
How it works
This calculator compares two calendar dates (not time-of-day). To match how people think about dates, it normalizes both inputs to local midnight and then computes the day difference.
You can optionally enable inclusive counting (counting both start and end dates). This is useful for “How many days is my trip?” style questions where both endpoints are included.
- Leap years: handled automatically
- Signed + absolute: shows A→B direction and absolute days
- Extras: weeks (approx), months (approx), weekdays for each date
Examples
- 2026-01-01 → 2026-01-31 → 30 days (inclusive: 31)
- 2026-02-01 → 2026-02-15 → 14 days (inclusive: 15)
- 2025-03-10 → 2025-04-01 → 22 days (inclusive: 23)
FAQ
- Does the order of dates matter?
You can use either order. The tool shows the signed difference (A→B) and also the absolute days.
- Does this include the start date?
By default it shows the difference in calendar days between the two dates. You can enable “Include start date” to count both endpoints.
- Does it handle leap years?
Yes. Because it uses real calendar dates, Feb 29 is handled automatically when applicable.
- Is this a business days calculator?
No. This tool counts calendar days (including weekends and holidays). Use a work/business days tool for weekday-only counting.
- Are my dates stored anywhere?
No. All calculations run locally in your browser. Nothing is stored or transmitted.