Know the exact distance between two dates.

Count a date range with its inclusion rule stated plainly, then copy or download the breakdown.

Date range

days
Result

Date breakdown

text
Calendar days: 31
Complete weeks + days: 4 + 3
Weekdays: 23
Weekend days: 8
​
Shifted forward: 2026-07-15

Processed locally — inputs and results stay in this browser tab. Copy and download actions run only when you choose them.

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Count dates without hidden assumptions.

Understand inclusive ranges, reverse ranges, leap years, weekdays, and date shifting.

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How DateSpan processes date values locally.

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Calendar-day arithmetic

DateSpan parses ISO calendar dates at UTC midnight, which avoids daylight-saving changes adding or removing an hour.

  • Choose whether the end date is included.
  • Reverse ranges keep their direction.
  • Weekdays exclude Saturday and Sunday only.

DateSpan

Count spans, working days, and date shifts with calendar clarity.

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HomeDays between dates, calculated exactly.Business days calculator for clear schedules.

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