* 仕様書

[REFS[
- [2] [[ISO 8601:2004]] 2.1.15
]REFS]

* 定義

[FIG[
[FIGCAPTION[
[1] [SRC[[[ISO 8601:2004]] 2.1.15]]
]FIGCAPTION]
> quantitative expression marking an [[instant]] within a [[calendar day]] by the [[duration]] elapsed after [[midnight]] in the [[local standard time]] [SRC[[[IEC 60050-111]]]]
]FIG]

;; [3] >>1 は [[IEC 60050-111]] では [[clock time]] と呼ばれています [SRC[>>2]]。