What date is it a number of days from today?

Look at the 90-day row in the table above, or type 90 in the calculator. The answer changes every day, so the table is recalculated from your device’s date each time the page opens.

No. Today is day 0, tomorrow is day 1. So “30 days from today” lands on the same weekday as 2 days from today, four weeks and two days later. This is the usual rule for deadlines such as “payment due within 30 days”, but check the wording of any contract, because some count the first day.

Adding a month moves to the same day number in the next month (March 15 to April 15), whatever the month length. Adding 30 days counts every day, so from January 31 it lands on March 2 in a common year. If a month is shorter, adding a month stops at its last day: January 31 plus one month is February 28 (29 in a leap year).

This calculator counts every calendar day, including weekends. To skip weekends and public holidays, use the business days calculator and choose “Add working days”.

Yes. Choose “Subtract” or type a negative number. The second table lists common dates in the past, such as 30, 90 and 180 days ago.