Free calculators and unit converters for general and everyday use.
Our online tools will provide quick answers to your calculation and conversion needs. On this page, you can calculate date interval between any two calendar dates. Find time duration in days, weeks or months between any two given dates.
To count forward or backwards any number of days/ weeks/ months from any given date, use our date arithmetic calculator.
yyyy2 mm2 dd2
− yyyy1 mm1 dd1
To find duration between two dates, we subtract the smaller date from the larger date, using the principle of borrow and re-group used in arithmetic subtraction, in the following order:-
Apart from showing time difference in days, weeks and months, we also show you the approximate time duration in hours, minutes and seconds.