Minute is a unit of time defined as equal to 60 seconds.[1] One hour contains 60 minutes.[2] Although not a unit in the International System of Units (SI), the minute is accepted for use in the SI.[1] The SI symbol for minutes is min (without a dot). The prime symbol ′ is also sometimes used informally to denote minutes.[3] In the UTC time standard, a minute on rare occasions has 61 seconds, a consequence of leap seconds; there is also a provision to insert a negative leap second, which would result in a 59-second minute, but this has never happened in more than 40 years under this system.
What we now call a minute derives from the first fractional sexagesimal place.
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