CALCULATOR · DATE ONLY

Date calculator

Find the difference between dates or move a date forward and backward. Calendar-date logic avoids DST off-by-one errors.

Local only · calendar-safe

Difference between two dates

Start date

End date

Count

Include the start date

Difference

—

Base date

Amount

Unit

Direction

Resulting date

—

Business-day limits

Business-day mode skips Saturday and Sunday only. It does not include public holidays and is not a legal deadline calculator.