Two date workflows
Count days between two dates, then switch to adding or subtracting days from a base date without leaving the page.
Browser-based calendar tools
Date Calculator
Calculate days between dates or find the date a number of days before or after any calendar day.
Date Calculator
Days between dates
Days between
—
Upcoming holidays
Add or subtract days
Result date
—
Plan dates quickly
Use the calculator for deadlines, trip planning, holiday countdowns, billing windows, and schedule checks.
Regional holiday shortcuts
Common holidays for major countries and regions are generated from calendar rules where possible.
FAQ
Does the day count include the end date?
No. It counts the full days between dates by default, so June 10 to June 11 shows 1.
What holidays are included?
The list includes common holidays for supported regions. The U.S. list also includes widely followed cultural dates such as Lunar New Year, Cinco de Mayo, St. Patrick's Day, and Day of the Dead.