Date Plus Days Calculator
Add or subtract days from a base date to find the date a given number of days before or after, complete with the day of the week. Includes a weeks breakdown, great for deadlines, anniversaries, and expiry dates.
Input
YYYY/MM/DD
days
Result
Enter a base date and a number of days.
How it works
- Pick a base date, enter the number of days you want to add (or subtract), and choose "After (+)" or "Before (−)" to see the resulting date along with its day of the week.
- "After (+)" finds a date in the future relative to the base date, and "Before (−)" finds a date in the past. The base date counts as day 0, and the result is shifted forward or backward by the number of days you enter.
- The number of days you enter is also broken down into weeks and days so you can quickly gauge the overall length of the period.
- Enter the number of days as a whole number of 0 or more, up to about 100 years (36,500 days). Leap years are taken into account automatically.
- Use it to check future or past dates such as deadlines, submission dates, contract expiry dates, anniversaries, and the number of days until an event.
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Date Plus Days Calculator