How do I count the number of days between two dates?

Select a start and end date and the calculator will show the exact difference. You can also choose whether to include the end date.

Can I calculate business days only?

Yes. Enable weekdays-only to exclude weekends, and optionally provide a holiday list to exclude specific dates.

Does the calculator handle leap years and timezones?

Yes. The tool is leap-year aware and uses timezone/DST-safe calculations for consistent results.

Can I export or share the results?

You can copy a formatted summary, share a permalink, or export to CSV/JSON for reports and archiving.

Toolzium

Date Difference

Uses your local timezone. Toggle inclusive to count both start and end dates.

Pick Dates

Quick presets or pick any two dates. Local timezone is applied.

Start date

End date

Count both start and end dates (inclusive)

Calendar diff

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Total days

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Total weeks

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Total hours

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Total minutes

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Total seconds

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Business days (Mon–Fri)

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Range

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Calendar diff shows Y/M/D; totals are day-based. Business days exclude weekends; holidays not excluded.

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