Date Difference Calculator
Calculate the difference between two dates in days, weeks, months, years, hours, and minutes.
How to use this tool
- 1Set the Start date using the date picker.
- 2Set the End date using the date picker.
- 3All six difference values (Days, Weeks, Months, Years, Hours, Minutes) appear instantly.
About Date Difference Calculator
Knowing the exact number of days between two dates is useful for project planning, contract durations, event countdowns, and deadline tracking. This calculator takes a start date and end date and computes six metrics simultaneously: days (absolute millisecond difference divided by 86,400,000), weeks (days divided by 7, floored), months (absolute difference in calendar months), years (absolute difference in calendar years), hours (millisecond difference divided by 3,600,000), and minutes (millisecond difference divided by 60,000). A note shows whether the end date is before or after the start date. All values are absolute (positive) regardless of order. The calculation updates instantly when either date changes. Project managers tracking sprint durations, lawyers calculating contract periods, and anyone planning a countdown are the primary users. Runs entirely in your browser.
Frequently asked questions
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