Days Between Dates Calculator

Count days between two dates with optional weekend/holiday exclusions and a calendar view.

Free · No signup · Runs in your browser · Shareable link syncs inputs

JavaScript is required for live calculation.

You can still read how Days Between Dates Calculator works, the formula, examples, and FAQs below.

Start date
End date
Exclude weekends
Exclude holidays — Uses a fixed illustrative US federal holiday list (2025–2027).

Inputs

Start date

End date

Exclude weekends

Exclude holidays

Updates live as you type — Calculate syncs a shareable URL.

Total days

inclusive

Weekdays

Weekends

Working days

Weekday holidays in range

Calendar span

April 2026

SMTWTFS

123456789101112131415161718192021222324252627282930

May 2026

SMTWTFS

12345678910111213141516171819202122232425262728293031

Range

Apr 1, 2026 → May 15, 2026

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Tools you open will show up here on this device — with your last inputs when available.

Count days between two dates with optional weekend/holiday exclusions and a calendar view.

Inclusive calendar span between the two dates. Working days optionally skip weekends and listed federal holidays.

Apr 1 to May 15 → 45 inclusive days (about 32 weekdays).

Inclusive counting?+

Both the start and end dates are counted as full days in the total.

What are working days?+

Calendar days remaining after optionally excluding weekends and/or listed US federal holidays.

Are holidays official?+

The list is illustrative for 2025–2027 — confirm against OPM for official schedules.