BS ISO 8601-2:2019规定了基于24小时时钟的公历日期和时间的附加表示法，扩展了ISO 8601中定义的基本规则和复合元素？1.这些表示被指定为用于信息交换的字符串。它也适用于表示基于协调世界时（UTC）的时间和时间偏移。交叉引用:ISO 8601-1:2019IETF RFC 5545ISO 80000-3ISO 80000-1购买时可用的所有当前修订版均包含在本文件的购买中。

BS ISO 8601-2:2019 specifies additional representations of dates of the Gregorian calendar and times based on the 24-hour clock that extend the basic rules and composite elements of those defined in ISO 8601?1. These representations are specified as character strings for use in information interchange. It is also applicable for representing times and time shifts based on Coordinated Universal Time (UTC).Cross References:ISO 8601-1:2019IETF RFC 5545ISO 80000-3ISO 80000-1All current amendments available at time of purchase are included with the purchase of this document.