How many second in 1 millis? The answer is 0.001. We assume you are converting between second and millisecond. You can view more details on each measurement unit: second or millis The SI base unit for time is the second. 1 second is equal to 1000 millis. Note that rounding errors may occur, so always check the results. Use this page to learn how to convert between seconds and milliseconds. Type in your own numbers in the form to convert the units!
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1 second to millis = 1000 millis
2 second to millis = 2000 millis
3 second to millis = 3000 millis
4 second to millis = 4000 millis
5 second to millis = 5000 millis
6 second to millis = 6000 millis
7 second to millis = 7000 millis
8 second to millis = 8000 millis
9 second to millis = 9000 millis
10 second to millis = 10000 millis
You can do the reverse unit conversion from millis to second, or enter any two units below:
The second (symbol s) is a unit for time, and one of seven SI base units. It is defined as the duration of 9,192,631,770 periods of the radiation corresponding to the transition between the two hyperfine levels of the ground state of the caesium-133 atom at zero kelvins.
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.
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