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

201,361 days

From Thursday, May 20, 1475 to Wednesday, September 9, 2026.

Monday–Friday weekdays143,829
Weeks and days28,765w 6d
Calendar span551 years, 3 months, 20 days

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