Time Tab

Note: This tab changes name depending on the selected Feature. The name can be Time, Network Link, Screen Overlay or Ground Overlay. The tab will contain only time related fields otherwise it will also contain the fields of one of the feature mentioned above.

Time Span

Represents an extent in time bounded by begin and end date/times.

The value can be expressed as yyyy-mm-ddThh:mm:sszzzzzz, where T is the separator between the date and the time, and the time zone is either Z (for UTC) or zzzzzz, which represents ±hh:mm in relation to UTC. Additionally, the value can be expressed as a date only. See below.

Begin:
Describes the beginning instant of a time period. If absent, the beginning of the period is unbounded.

End:
Describes the ending instant of a time period. If absent, the end of the period is unbounded.

Time Stamp

Represents a single moment in time. This is a simple element and contains no children. Its value is a date/time, specified in XML time (see XML Schema Part 2: Data types Second Edition ). The precision of the Time Stamp is dictated by the date/time value in the <when> element.

When:
Specifies a single moment in time. The value is a date/time, which can be one of the following:

date/Time gives second resolution
date gives day resolution
Year/Month gives month resolution
Year gives year resolution

The following examples show different resolutions:

Year (YYYY) ie.: 2008
Year/Month (YYYY-MM) ie: 2008-04
date (YYYY-MM-DD) ie: 2008-04-01
date/time (YYYY-MM-DDThh:mm:ssZ) ie: 2008-04-01T08:39:43Z
date/time (YYYY-MM-DDThh:mm:sszzzzzz) ie: 2008-04-01T10:30:15+03:00
This example gives the local time and then the ± conversion to UTC.

Begin:	Describes the beginning instant of a time period. If absent, the beginning of the period is unbounded.
End:	Describes the ending instant of a time period. If absent, the end of the period is unbounded.