Add a number of days to a date and get the new date and weekday.
Adding days advances the calendar date, rolling over months and years automatically, and negative values move backward. Deadline and expiry math needs a dependable future date rather than hand counting across a paper calendar.
Date Add Days
Result = start date + days added; weekday comes from the result's weekday number
Result = start date + days added; weekday comes from the result's weekday number Adding days advances the calendar date, rolling over months and years automatically, and negative values move backward.
Deadline and expiry math needs a dependable future date rather than hand counting across a paper calendar.
This calculator takes 4 inputs: Start year, Start month, Start day, Days to add. The pre-filled defaults are a realistic starting point — replace them with figures from your own environment for a result you can act on.