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Date & Time Calculator
Calendar arithmetic, reviewed October 2026 — weekends count unless a page says otherwise, and the sample holiday list is not an official gazette.
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A date difference calculator counts whole calendar days from the first date to the second and expresses the same gap in weeks. From 1 January 2026 to 1 June 2026 is 151 days — about 21.57 weeks. The time of day is ignored, so the result is pure calendar span: deadlines, leave balances, anniversaries, or days since an event.
Enter the earlier date first; the tool reports the gap's size either way. Decide whether you need exclusive or inclusive counting: the raw gap excludes one endpoint, so add 1 when both the start and end days count as whole days (a 1–10 January leave is 9 days exclusive, 10 inclusive). Every day counts here — weekends included — so switch to the business-days calculator when only working days matter.
It does not skip weekends or holidays, does not add an extra day for inclusive counting — add one yourself when both end days count as whole days — and it reports the gap's size regardless of which date you typed first.
Counts every calendar day — weekends and holidays are included.
It measures the gap between the two dates. If you need to count both the start and end day as whole days, add one to the result.
Enter the earlier date first; the tool reports the magnitude of the gap between them.
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