Days between dates
Count the distance between two Gregorian calendar dates. Weekdays mean Monday through Friday and do not exclude holidays.
163,168 days
From Wednesday, December 12, 1579 to Monday, September 7, 2026.
Monday–Friday weekdays116,548
Weeks and days23,309w 5d
Calendar span446 years, 8 months, 26 days
Standard mode excludes the earlier endpoint and includes the later endpoint. Reversed inputs keep the same absolute counts and are identified above.