Date Calculator

Add or subtract years, months, weeks and days from any date.

Start dateOperation

YearsMonthsWeeksDays

Result date—

Difference—

How months are added

Adding a month keeps the same day number when it exists. January 31 plus one month becomes the last day of February, because February has no 31st. Years and months are added first, then weeks and days.

Frequently asked questions

What date is 6 months from today?

Set Months to 6 and Days to 0. The result shows the date six calendar months from your start date.