> (Data|State) Management and Processing > (Data Type|Data Structure) > Time

1 - About

Time is simply a coordinate that orders the occurrence of events.

Every event occurrence can be given a time coordinate value and, based on this, can be said to be:

  • before,
  • after
  • or at the same time

as another event occurrence.

This section is about:

  • Years do not have a constant number of days (nor do months)
  • date1-date2 is a NUMBER
  • timestamp1-timestamp2 is an INTERVAL which is handy for elapsed times
  • Time does not only moves forward in computer. See for instance, Time - Leap Second
  • If you search the time serie section, it has its own: Time Series

2 - Documentation / Reference