Days Since Calculator
Find how many days have passed since a specific date.
Date
Result
Pick a past date to see how many days have passed.
How it works
The calculator counts full calendar days from a past date to a reference date. For example:
- January 1 → January 5 = 4 days
- March 15 → March 20 = 5 days
- Today → Today = 0 days
Calculations are based on dates only (no time) to ensure consistent results regardless of your timezone. Popular dates like Christmas or New Year's are automatically calculated for the nearest occurrence.