How many seconds are in a day?

There are 86,400 seconds in a day: 24 hours × 60 minutes × 60 seconds.

How is a month defined in this converter?

As the average Gregorian month: 30.44 days (365.2425 days ÷ 12). Individual calendar months vary from 28 to 31 days.

Time Unit Converter

Convert durations between time units — from milliseconds all the way up to years. Handy for programmers converting timeouts, project planners estimating durations, or anyone curious how many seconds are in a year. Month and year conversions use average calendar lengths (30.44 days and 365.24 days).

Converters

Value

From

1 Seconds = 1,000 Milliseconds

1 Seconds (s) converted to all units
Unit	Value
Seconds (s)	1
Milliseconds (ms)	1,000
Minutes (min)	0.01666666667
Hours (h)	0.0002777777778
Days	0.00001157407407
Weeks	0.000001653439153
Months (avg)	0.0000003802648621
Years (avg)	0.00000003168873851

Private by default

This tool runs entirely in your browser. Your data is never uploaded to a server.

How to use

3 clear steps.

Enter a duration value.
Choose its unit (e.g. hours).
Choose the target unit (e.g. minutes) and read the converted duration.

Good to know

Frequently asked questions

How many seconds are in a day?: There are 86,400 seconds in a day: 24 hours × 60 minutes × 60 seconds.
How is a month defined in this converter?: As the average Gregorian month: 30.44 days (365.2425 days ÷ 12). Individual calendar months vary from 28 to 31 days.