“How many days between these two dates?” has two correct answers — the gap, and the count including both ends — and picking the wrong one shifts every downstream date by a day. The new Days Between Dates calculator shows both and removes the guesswork.
What it does
- Exact day count: the difference between any two dates, in any order.
- Inclusive toggle: measure the gap, or count both endpoints.
- Weeks and remainder: the total expressed as weeks plus days.
- Working-day split: weekdays, weekend days, and business days.
- Client-side: nothing you enter leaves your browser.
Why it matters
Deadlines, notice periods, billing cycles, and countdowns all hinge on an exact day count — and on whether the end date is included. Making that choice explicit, and handling leap years automatically, is the difference between a correct date and an awkward one-day error.
Learn more
Read Counting Days Between Dates: Inclusive vs Exclusive, then try the calculator.
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Frequently Asked Questions
Inclusive or exclusive?
Both. The tool shows the exclusive gap and the inclusive count, and lets you pick which one is the headline, so there's no off-by-one ambiguity.
Does it show working days?
Yes — it breaks the span into weekdays, weekend days, and Monday–Friday business days.
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