Date & Time
Date Difference Calculator
Find the span between two dates.
Enter two dates to compare.
How to use
- Enter a start date and an end date.
- Click Calculate to see the breakdown and total days.
About this tool
Useful for project timelines, warranty periods, and event planning. If the end date is before the start date, the absolute difference is shown and marked as reversed.
FAQ
Are end dates inclusive?
Total days uses the millisecond difference divided by one day, which counts full 24-hour periods between the date-only UTC midnights.
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