Days between dates
Count the distance between two Gregorian calendar dates. Weekdays mean Monday through Friday and do not exclude holidays.
163,068 days
From Friday, March 21, 1580 to Monday, September 7, 2026.
Monday–Friday weekdays116,476
Weeks and days23,295w 3d
Calendar span446 years, 5 months, 17 days
Standard mode excludes the earlier endpoint and includes the later endpoint. Reversed inputs keep the same absolute counts and are identified above.