Using a quick equation, you can convert an existing set of time data written in "hh:mm" format to hours in decimal format.

Before getting into decimal time, we should clear up what we mean by metric time, since the two are often used incorrectly. Metric time is for measurement of time intervals.

The decimal hour was then divided into 100 minutes, each 86.4 seconds long. The decimal minute was in turn split into 100 decimal seconds, which you can probably work out means that these were the ...

UNIX time is probably the most instantly recognisable of all our measurement schemes, being a count of seconds elapsed since the Unix epoch of 1970-01-01T00:00:00+00:00 UTC.