Find the difference between two dates, or add / subtract days, weeks, months and years from any date.
| Total Days | — |
| Total Weeks | — |
| Total Months | — |
| Total Hours | — |
| Total Minutes | — |
| Total Seconds | — |
The date difference tool counts the exact number of days, weeks, months, hours, minutes and seconds between any two calendar dates — useful for calculating age, deadlines, project durations, or anniversaries.
The add/subtract mode lets you find a future or past date by entering a number of years, months, weeks and days to offset from your chosen start date. This is useful for lease expiry dates, loan maturity dates, or countdown planning.
When the result of adding months falls on a day that doesn't exist in that month (e.g. Jan 31 + 1 month), the calculator adjusts to the last valid day of that month (Feb 28/29).
Calculatr