timeExtent

The KML node's time extent. Represents the TimeExtent equivalent of a KML node's TimeStamp[https://docs.opengeospatial.org/is/12-007r2/12-007r2.html#1168] or https://docs.opengeospatial.org/is/12-007r2/12-007r2.html#1181. A KmlContainer node such as KmlDocument or KmlFolder may have its own TimeExtent independent of its child nodes. All KML TimeStamps and TimeSpans specified in a KML/KMZ file are converted to their UTC TimeExtent equivalents.

Examples:

20212021-01-01T00:00:002021-12-31T23:59:59
2021-012021-01-01T00:00:002021-01-31T23:59:59
2021-01-012021-01-01T00:00:002021-01-01T23:59:59
2021-01-01T12:34:562021-01-01T12:34:562021-01-01T12:34:56
2021 - 20222021-01-01T00:00:002022-12-31T23:59:59
2021-01 - 2021-022021-01-01T00:00:002021-02-28T23:59:59
No beginning - 2021Infinite start time2021-12-31T23:59:59
2021 - No end2021-01-01T00:00:00Infinite end time

Since

200.1.0