Date Duration Calculator

Jak używać

Pick a start and end date. Optionally include the start day in the day count. Calculate shows total days, whole weeks, and a calendar breakdown.

Przykład

Inclusive start is optional. Inverted ranges (end before start) are an error, not a negative duration.

2024-02-28 to 2024-03-01

2 days, 0 weeks remainder noted, calendar 0 years 0 months 2 days

Jak to działa

Dates are parsed as calendar Y-m-d values. Day counts use date differences, not milliseconds divided by 86400000, so leap days are included when they fall in the range.

Częste błędy

• End before start Swap the dates. Negative spans are not returned.
• 29 February was rejected That year is not a leap year.
• You expected business days only This tool counts calendar days, including weekends.

Ograniczenia

Time of day and time zones are ignored. Legal deadlines that exclude holidays need a different tool.

Prywatność

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Pytania

Does 2024-02-28 to 2024-03-01 include the leap day?

Yes. The span is 2 days because 29 February 2024 exists.