Time Converter
Convert milliseconds, seconds, minutes, hours, days, weeks, months and years.
Show this value in every unit
Runs in your browser — your data never leaves your device.
About the Time Converter
How many minutes are in 7.5 hours? How many hours in a week? Convert any duration between milliseconds and years.
Months and years have different lengths, so this converter uses averages: a year of 365.2425 days (the Gregorian average) and a month of one twelfth of that. For exact calendar dates use our Date Calculator.
How to use the Time Converter
- Enter a duration.
- Choose the units to convert from and to.
- Read the result and the quick table.
How it works
Every unit is converted through seconds: 1 minute = 60 s, 1 hour = 3,600 s, 1 day = 86,400 s, 1 week = 604,800 s, 1 average month = 2,629,746 s (30.44 days), 1 year = 31,556,952 s (365.2425 days).
Examples
- 7.5 hours = 450 minutes.
- 1 week = 168 hours.
- 1 day = 1,440 minutes = 86,400 seconds.
Frequently asked questions
Why is a month shown as 30.44 days?
Months have 28 to 31 days, so for unit conversion the average length (365.2425 ÷ 12 days) is used.
Can I convert to other units too?
Yes. Choose any unit in the From and To lists, or use the main Unit Converter for length, weight, temperature and more.