夏令时规则更改使C运行时库无效？ [英] Has the daylight savings rule change invalidated the C runtime library?

问题描述

前段时间，我组合了一个基于时间的图书馆，可用于在一年内为某人制作相对时间。当时我注意到，这样做是为了夏令时，双向一小时的转向。我刚刚发现，国会更改了夏令时规则。我不记得看到有关更新的任何信息来解决算法的变化。有没有人有关于这个主题的任何信息？

解决方案

大多数类Unix系统使用Olson tz数据库来显示时区信息： / p>

http：// www。 twinsun.com/tz/tz-link.htm

美洲时区规则的更改已在tz数据库的版本2005l中实现。 >

Some time ago I put together a time based library that could be used for working out relative times within a year for someone. I noted at the time, that it did the one hour shift in both directions for daylight savings. It just occurred to me that Congress changed the daylight savings time rules. I don't recall seeing any information about updates to resolve the change in algorithms. Does anyone have any information on this topic?

解决方案

Most Unix-like systems use the Olson tz database for their timezone information:

http://www.twinsun.com/tz/tz-link.htm

The changes to the US timezone rules were implemented in version 2005l of the tz database.

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