Date / Time Calculator

Calculate the difference between two dates, or add/subtract days from a date.

From

Days—

Hours—

Minutes—

Total seconds—

Start date

Operation

Days

Hours

Minutes

Seconds

Result—

Features

Days between dates

Add/subtract days

Day of week

Days until date

1. Pick two dates to see the days, weeks, and years between them.

2. Or pick a date and add/subtract days to find a new date.

How are leap years handled?

The calculator accounts for leap years automatically when computing date differences.