Days between dates
Count the distance between two Gregorian calendar dates. Weekdays mean Monday through Friday and do not exclude holidays.
162,786 days
From Sunday, December 28, 1580 to Monday, September 7, 2026.
Monday–Friday weekdays116,276
Weeks and days23,255w 1d
Calendar span445 years, 8 months, 10 days
Standard mode excludes the earlier endpoint and includes the later endpoint. Reversed inputs keep the same absolute counts and are identified above.