RE: OWL-Time - ISSUE-163: Which time? Leap seconds?

The default temporal reference system is Gregorian UTC. This includes leap seconds as specified by the IERS. The ISO8601 standard states this explicitly. See Section 3.3.

If one wishes to use another timescale, such as a pseudo-Gregorian without leap seconds, or UT0, or TAI, etc., one uses the time:TRS class and the time:hasTRS property to specify the Temporal Reference System. Example 5.2 demonstrates this for the Hebrew calendar.

Producing a definitive list of calendars and timescales is out of scope of this work, but is obviously desirable.

Issue closed.

Chris

From: Simon.Cox@csiro.au [mailto:Simon.Cox@csiro.au]
Sent: Wednesday, April 12, 2017 8:05 AM
To: Little, Chris
Cc: public-sdw-wg@w3.org
Subject: OWL-Time - ISSUE-163: Which time? Leap seconds?

Chris – can you respond to this one please?

https://www.w3.org/2015/spatial/track/issues/163


Simon

Simon J D Cox
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Environmental Informatics
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