Date & TimeUpdated 2026-04-12
Date Difference Calculator
Enter two dates to calculate days, weeks, and approximate months between them.
Result
Days
101
Weeks
14.43
Approximate months
3.32
Formula Explanation
Days are calculated from UTC date timestamps. Weeks are days / 7, and months use the average Gregorian month length.
How to Use
- Enter the start date.
- Enter the end date.
- Review the difference in days, weeks, and approximate months.
Examples
Example: From 2026-01-01 to 2026-04-12 is 101 days.
FAQ
Are the start and end dates inclusive?
The result is the elapsed difference between timestamps, not an inclusive count of calendar dates.
Why are months approximate?
Months have different lengths, so this calculator uses the average month length for a simple estimate.