📆 Days between two dates

How it works

The calculation respects leap years and keeps second-level resolution. Useful for deadlines, contractual periods, holidays or simple curiosity.

Fun facts

• A century has between 36,524 and 36,525 days depending on the placement of leap years.
• A millennium contains about 525,600,000 minutes.
• The longest gap between two consecutive Feb 29 birthdays is 8 years (due to the "divisible by 100 but not 400" rule).