Topic summary
Time zones
Extracted from the Wikipedia article Time zone.
Abbreviations
Time zones are often represented by alphabetic abbreviations such as "EST", "WST", and "CST", though these are not part of the international time and date standard ISO 8601. Such designations can be ambiguous; for example, "CST" can mean (North American) Central Standard Time (UTC−06:00), Cuba Standard Time (UTC−05:00), or China Standard Time (UTC+08:00), and is also a widely used variant of ACST (Australian Central Standard Time, UTC+09:30).