Add Days
Add Days
Date Calculator Add Days
Use this page as a date calculator, date add calculator, or add days to date tool. Choose a base date, then move it forward or backward by hours, days, weeks, months, or years.
It also works for searches such as date calculator add, add dates calculator, date calculator add days, and add days to date when you need a quick new-date result.
FAQ
- How do I add days to a date?
- Select the base date, enter the amount, choose days as the unit, and calculate the new date. You can also switch the unit to hours, weeks, months, or years.
- Can this date calculator subtract dates too?
- Yes. Change the direction from forward to backward to subtract time from the selected date and get the resulting new date.
Mode d'emploi
Choose a calculation mode, enter one or more dates, and the result updates immediately.
- Pick two dates in the Date Difference section to compare them.
- Use Date Arithmetic to add or subtract days, weeks, months, or years from a base date.
- Check the weekday labels to confirm the target falls on the day you expect.
Conseils
- Inclusive days count both the start date and the end date.
- Month and year calculations keep the same day when possible, and clamp to the last valid day when needed.