Sealed class
The class of objects representing durations in units of microseconds.
<integer>.
<integer>. Default value: 0.
<integer>. Default value: 0.
<integer>. Default value: 0.
<integer>. Default value: 0.
system
date
The class of objects representing durations in units of microseconds. It is a subclass of <duration>.
Use this class to represent a number of days and fractions thereof. If you need to represent durations in calendar units of months or years, use <year/month-duration> instead.
< + - decode-duration encode-day/time-duration