[1]

ISO 19111:2019

3.1.64 temporal coordinate system
<geodesy> one-dimensional coordinate system where the axis is time

[2] OGC Abstract Specification Topic 2: Referencing by coordinates (2019-02-25 14:52:07 +09:00) http://docs.opengeospatial.org/as/18-005r4/18-005r4.html

[3] ISO 19111 では3種類に対応しています。 >>2

DateTimeTemporalCS
TemporalCountCS
TemporalMeasureCS

[4] 本項 (ISO 19111 の意味) と ISO 19108 の意味は異なります。 >>1

This document and ISO 19108:2002 use the term temporal coordinate system to describe different concepts. A 19108:2002 temporal coordinate system maps to this document’s temporal coordinate reference system.