How many hour in 1 microsecond?
The answer is 2.7777777777778E-10.

We assume you are converting between **hour** and **microsecond**.

You can view more details on each measurement unit:

hour or
microsecond

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

1 second is equal to 0.00027777777777778 hour, or 1000000 microsecond.

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

Use this page to learn how to convert between hours and microseconds.

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 hour to microsecond = 3600000000 microsecond

2 hour to microsecond = 7200000000 microsecond

3 hour to microsecond = 10800000000 microsecond

4 hour to microsecond = 14400000000 microsecond

5 hour to microsecond = 18000000000 microsecond

6 hour to microsecond = 21600000000 microsecond

7 hour to microsecond = 25200000000 microsecond

8 hour to microsecond = 28800000000 microsecond

9 hour to microsecond = 32400000000 microsecond

10 hour to microsecond = 36000000000 microsecond

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

hour to century

hour to quarter

hour to day

hour to week

hour to millennium

hour to millisecond

hour to fortnight

hour to year

hour to second

hour to month

The hour was originally defined in Egypt as 1/24 of a day, based on their duo-decimal numbering system (which counted finger joints on each hand).

The SI prefix "micro" represents a factor of
10^{-6}, or in exponential notation, 1E-6.

So 1 microsecond = 10^{-6} 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.

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