Sealed abstract instantiable class
The class of objects representing durations.
<number>
iso8601-string An instance of false-or(<string>). Default value: #f.
limited(<integer>, min: 1800, max: 2199).
limited(<integer>, min: 1, max: 12).
limited(<integer>, min: 1, max: 31).
limited(<integer>, min: 0, max: 23). Default value: 0.
limited(<integer>, min: 0, max: 59). Default value: 0.
limited(<integer>, min: 0, max: 59). Default value: 0.
limited(<integer>, min: 0, max: 999999). Default value: 0.
<integer>. Default value: 0.
system
date
This class is the used to represent durations. It is a subclass of <number>, and it has two subclasses.