Project timelines
Measure how many days are between a start date and a deadline.
Date difference calculator
Days -
Approx. weeks -
Approx. months -
Approx. years -
See examples
Personal milestones
Count days between anniversaries, trips, appointments, or events.
About this helper
This tool compares two local calendar dates and returns the absolute distance between them. Month and year values are approximate because calendar months do not all have the same length.
Does the order of dates matter?
No. The tool returns the absolute difference between the two dates.
Are months exact?
Months are approximate and use the average Gregorian month length.