How many days in 1 millisecond?
The answer is 1.1574074074074E-8.

We assume you are converting between **day** and **millisecond**.

You can view more details on each measurement unit:

days or
millisecond

The SI base unit for **time** is the second.

1 second is equal to 1.1574074074074E-5 days, or 1000 millisecond.

Note that rounding errors may occur, so always check the results.

Use this page to learn how to convert between days and milliseconds.

Type in your own numbers in the form to convert the units!

You may also want to find out how many days
are between two dates on the calendar. Use the
**date calculator**
to get your age in days or measure the duration of an event.

1 days to millisecond = 86400000 millisecond

2 days to millisecond = 172800000 millisecond

3 days to millisecond = 259200000 millisecond

4 days to millisecond = 345600000 millisecond

5 days to millisecond = 432000000 millisecond

6 days to millisecond = 518400000 millisecond

7 days to millisecond = 604800000 millisecond

8 days to millisecond = 691200000 millisecond

9 days to millisecond = 777600000 millisecond

10 days to millisecond = 864000000 millisecond

You can do the reverse unit conversion from millisecond to days, or enter any two units below:

days to second

days to month

days to week

days to century

days to microsecond

days to fortnight

days to decade

days to minute

days to hour

days to nanosecond

A continous period of 24 hours which, unless the context otherwise requires, runs from midnight to midnight.

The SI prefix "milli" represents a factor of
10^{-3}, or in exponential notation, 1E-3.

So 1 millisecond = 10^{-3} arcseconds.

The definition of a second is as follows:

A second of arc or arcsecond is a unit of angular measurement which comprises one-sixtieth of an arcminute, or 1/3600 of a degree of arc or 1/1296000 (approximately 7.7×10-7) of a circle. It is the angular diameter of an object of 1 unit diameter at a distance of 360×60×60/(2pi) (approximately 206,265 units), such as (approximately) 1 cm at 2.1 km, or, directly from the definition, 1 astronomical unit at 1 parsec.

**ConvertUnits.com** provides an online
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