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Find the exact difference between two dates in days, weeks, months, years, hours, and minutes.
Difference Calculation:
Difference = |End Date - Start Date|
The absolute value ensures the result is always positive regardless of which date is earlier.
No. The calculator uses absolute difference, so the result is the same whether start date is earlier or later than the end date.
Months are counted by incrementing from the earlier date, adjusting for the day of month. This gives an exact month count rather than a simple 30-day estimate.
The calculator supports any valid date range. JavaScript date objects can handle dates from millions of years in the past to far in the future.
Hours are the total millisecond difference divided by 3,600,000 (ms per hour), rounded down. This counts all elapsed hours across the entire range.
Weeks are floored (whole weeks only). The remaining days are the fractional week that does not complete a full 7-day period.