Date calculator
Add or subtract days, weeks, months, or years from a date and see the resulting date and weekday.
How to use
- Enter the start date.
- Choose the direction, amount, and unit.
- Calculate and read the result date.
What it supports
Month and year arithmetic clamps to the month's length, so Jan 31 plus one month becomes Feb 28 or 29. Whole amounts up to 100,000; years 1–9999.