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Change any input — the result updates immediately No hidden assumptions. Inputs, units and the working stay visible so you can check the calculation.
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What do you want to calculate? Difference between two dates Add or subtract a duration Start date End date Primary count Calendar days Business days (Mon–Fri) Counting convention Elapsed gap (start is day 0) Include both endpoint dates
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The current values do not form a valid calculation. Check the dataset, required values, percentages, dates or zero denominators.
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