Time Converter
Convert time between seconds, minutes, hours, days, weeks and years.
Results update as you type.
About this calculator
A time converter changes a duration between milliseconds, seconds, minutes, hours, days, weeks, months and years. It converts through seconds; a month is taken as the average 30.44 days and a year as 365.25 days to account for leap years.
Frequently asked questions
How many seconds are in a day?
A day has 86,400 seconds (24 × 60 × 60). A week has 604,800 seconds.
How many hours are in a year?
Using an average year of 365.25 days, there are about 8,766 hours in a year. Over four years the quarter-days add up to one extra leap day.
How long is a month here?
A month is treated as 1/12 of an average year, about 30.44 days, because calendar months vary from 28 to 31 days. For exact calendar spans use a date-difference tool.
Results are estimates for general guidance only, not financial, medical or tax advice.