ISO 8601-2:2019/Amd 1:2025 — Date and Time — Representations for Information Interchange — Part 2: Extensions (2019) — Amendment 1: Canonical Expressions, Extensions to Time Scale Components and Date Time Arithmetic | SpecAtlas
Date and Time — Representations for Information Interchange — Part 2: Extensions (2019) — Amendment 1: Canonical Expressions, Extensions to Time Scale Components and Date Time Arithmetic