Days between dates
Count the distance between two Gregorian calendar dates. Weekdays mean Monday through Friday and do not exclude holidays.
100,100 days
From Sunday, September 30, 2300 to Sunday, September 6, 2026.
Monday–Friday weekdays71,500
Weeks and days14,300w 0d
Calendar span274 years, 24 days
Standard mode excludes the earlier endpoint and includes the later endpoint. Reversed inputs keep the same absolute counts and are identified above.