Time-unit converter

3days

72 hours

seconds: 259,200
minutes: 4,320
hours: 72
weeks: 0.428571
Average months (approx.): 0.098565
Average years (approx.): 0.008214

Months and years use the mean Gregorian length. They are approximate durations, not calendar dates.

How this count works

Seconds through weeks use fixed conversion factors. The month and year rows use the average length of the Gregorian calendar, so they are approximations for a real date span.

A duration day here is a fixed block of hours. A local calendar day around a daylight-saving change can be shorter or longer. Months and years need actual dates for a calendar answer.

See how we count for the calendar conventions behind the answer.

Next, if you need it

For an exact calendar span, use days between dates.

To add that span to a starting date, use the date calculator.

A worked example

72 hours equals 3 days. The average-month result is 0.098565, which does not name a calendar date.