Days between dates
Count the distance between two Gregorian calendar dates. Weekdays mean Monday through Friday and do not exclude holidays.
242,785 days
From Monday, December 21, 1361 to Friday, September 11, 2026.
Monday–Friday weekdays173,419
Weeks and days34,683w 4d
Calendar span664 years, 8 months, 21 days
Standard mode excludes the earlier endpoint and includes the later endpoint. Reversed inputs keep the same absolute counts and are identified above.