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

202,964 days

From Thursday, December 29, 1470 to Wednesday, September 9, 2026.

Monday–Friday weekdays144,974
Weeks and days28,994w 6d
Calendar span555 years, 8 months, 11 days

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