A standard duration, which provides a scale factor for a time extent, or the granularity or precision for a time position.

Temporal unit

A standard duration, which provides a scale factor for a time extent, or the granularity or precision for a time position.

Remove enumeration from definition, in order to allow other units to be used when required in other coordinate systems. NOTE: existing units are still present as members of the class, but the class membership is now open. In the original OWL-Time the following constraint appeared: owl:oneOf ( time:unitSecond time:unitMinute time:unitHour time:unitDay time:unitWeek time:unitMonth time:unitYear ) ;

Membership of the class TemporalUnit is open, to allow for other temporal units used in some technical applications (e.g. millions of years, Baha'i month).