Add or subtract days from a date
Work out due dates, deadlines or delivery dates from a start date.
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How it is calculated
When adding months, if the day does not exist in the target month (for example, 31 April) the last day of that month is used.
The business-days option skips the weekend days you choose but not public holidays.
Frequently asked questions
What date is 30 days from today?
Keep today as the start date, choose "Add", 30 and "Days".
What happens if I add one month to 31 January?
You get the last day of February (28 or 29).