Date Difference Calculator
Find the exact number of days, weeks, months, and years between any two dates.
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Duration breakdown
1
years
0
months
0
days
Total counts
| Total days | 365 |
| Total weeks | 52 |
| Total months | 12 |
| Total hours | 8,760 |
| minutes | 525,600 |
| seconds | 31,536,000 |
Frequently Asked Questions
Enter your start and end dates in the calculator above. The tool instantly shows the total number of days (and also weeks, months, and years). It handles leap years, month-length differences, and day-of-week automatically.
In a non-leap year, there are 364 days between January 1 and December 31. In a leap year (e.g. 2024) there are 365 days between those two dates.
The calculator counts complete calendar years first, then complete months, then remaining days. For example, from January 15 to March 5 is 1 month and 18 days (not 49 days split into months).
Date difference tools differ in whether they count the start date, end date, or both. This calculator counts all days between the two dates (exclusive of both endpoints), which is the standard mathematical definition.