Page tree
Skip to end of metadata
Go to start of metadata

Access allows a user to constrain their results using a temporal constraint. Users can enter date/time values into one of two form inputs:

  • Start Time
  • End Time

The format of a date/time constraint is as follows,

Values must conform to xsd:dateTime with the exception that times without a timezone (local time) are rejected.

For example,

2000-01-01T10:00:00Z specifies a date of January 1st 2000 and a time of 10am UTC.

2002-10-10T12:00:00-05:00 is noon on 10 October 2002, Central Daylight Savings Time as well as Eastern Standard Time in the U.S.

Finding data from a specific date until 'now'

By specifying a start date of 2000-01-01T10:00:00Z you will query all data that has a temporal extent that overlaps the period from January 1st 2000 at 10am UTC until the current time.

Finding data before a specific date

By specifying an end date of 2000-01-01T10:00:00Z you will query all data that has a temporal extent that overlaps from 'the beginning of time' until January 1st 2000 at 10am UTC.

Finding data within an explicit time frame

By specifying a start date of 2001-01-01T10:00:00Z and an end date of 2010-01-01T10:00:00Z you will query all data that has a temporal extent that overlaps a time frame from January 1st 2000 at 10am UTC to January 1st 2010 at 10am UTC.

  • No labels