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

242,908 days

From Thursday, August 20, 1361 to Friday, September 11, 2026.

Monday–Friday weekdays173,506
Weeks and days34,701w 1d
Calendar span665 years, 22 days

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