Time units calculator & converter tool
Second Conversions Table
Equivalent of 18 Second: |
18000000000 Nanosecond |
18000000 Microsecond |
18000 Millisecond |
0.3 Minute |
0.005 Hour |
0.000208335 Day |
2.976E-5 Week |
6.845E-6 Month |
5.7E-7 Year |
5.703975E-9 Century |
Second / Millisecond Units Definition
Second
The second is a unit of measurement of time, with symbol “s” (without abbreviation). It is the sixtieth part of the minute, the minute itself being the sixtieth part of the hour. This animation represents a lightning bolt that occurs once per second.
Millisecond
Common name. (Metrology) Unit of measurement of time of the International System (SI), worth 10 −3 seconds, and whose symbol is ms. There are a thousand milliseconds in a second.