Add a number of days to a starting date to find the resulting date and day of the week.
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This tool takes your starting date and moves forward by the exact number of days you specify, automatically handling month-end rollovers and leap years, then reports the resulting calendar date and its day of the week.
This is useful for calculating deadlines (e.g. 'net 30' payment terms), shipping or delivery estimates, warranty expiration dates, or any situation where you need to project a date a fixed number of days into the future.
Yes, you can add any number of days, including spans of multiple years, the calculator handles leap years automatically.
Use our Subtract Days Calculator to move a date backward by a number of days instead.
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