Measurements / Local utility
Date Intervals
Count days between dates or move a date by a signed day count. Choose the counting rules explicitly.
Calculate with date-only values
Start is excluded; each step lands on the next counted day. Zero keeps the start date, even on a weekend. Interval endpoint options apply only to days between dates.
Holidays are not considered. Dates range from 1000-01-01 to 9999-12-31. Intervals are bounded to 36,525 calendar days apart; signed offsets to ±36,525 counted days. Reversed intervals are negative. Equal dates count once only with both endpoints included; otherwise zero.
Selectable result
Focus and select the complete result with your keyboard. Editing dates or options clears stale results.
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