Date-to-date calculator

Days between dates

Count the distance between two Gregorian calendar dates. Weekdays mean Monday through Friday and do not exclude holidays.

Excluding the start date

167,938 days

From Sunday, November 20, 1566 to Monday, September 7, 2026.

Monday–Friday weekdays119,956
Weeks and days23,991w 1d
Calendar span459 years, 9 months, 18 days

Standard mode excludes the earlier endpoint and includes the later endpoint. Reversed inputs keep the same absolute counts and are identified above.