时区缩写

Question

TimeZoneInfo不提供给定时区的缩写或简称。做到这一点的唯一好方法是拥有一个字典，它将缩写映射到timezone.id、standardname或daylightname属性。然而，我搜索的缩写列表的所有来源都有不同的时区名称，即与Windows中的不同。

如何在.NET中向用户显示全名、id或任何其他名称？我不想要UtcOffset而是时区缩写-Pacific的PST,Universal的UTC,EST-East Standard等。是否有任何C#兼容的列表或数据库，其中包含所有可能的时区及其缩写，并与timeZoneInfo.getsystemtimezone()提供的时区及其缩写兼容？

Answer 1

更新的答案

我最初的回应如下，并且仍然有效。但是现在有一个更简单的方法，使用TimeZoneNames库。从Nuget安装后，您可以执行以下操作：

string tzid = theTimeZoneInfo.Id;                // example: "Eastern Standard time"
string lang = CultureInfo.CurrentCulture.Name;   // example: "en-US"
var abbreviations = TZNames.GetAbbreviationsForTimeZone(tzid, lang);

生成的对象将具有类似于以下内容的属性：

abbreviations.Generic == "ET"
abbreviations.Standard == "EST"
abbreviations.Daylight == "EDT"

// starting with a .Net TimeZoneInfo
var timeZoneInfo = TimeZoneInfo.FindSystemTimeZoneById("Pacific Standard Time");

// You need to resolve to a specific instant in time - a noda Instant
// For illustrative purposes, I'll start from a regular .Net UTC DateTime
var dateTime = DateTime.UtcNow;
var instant = Instant.FromDateTimeUtc(dateTime);

// note that if we really wanted to just get the current instant,
// it's better and easier to use the following:
// var instant = SystemClock.Instance.Now;


// Now let's map the Windows time zone to an IANA/Olson time zone,
// using the CLDR mappings embedded in NodaTime.  This will use
// the *primary* mapping from the CLDR - that is, the ones marked
// as "territory 001".

// we need the NodaTime tzdb source.  In NodaTime 1.1.0+:
var tzdbSource = TzdbDateTimeZoneSource.Default;

// in previous NodaTime releases:
// var tzdbSource = new TzdbDateTimeZoneSource("NodaTime.TimeZones.Tzdb");

// map to the appropriate IANA/Olson tzid
var tzid = tzdbSource.MapTimeZoneId(timeZoneInfo);

// get a DateTimeZone from that id
var dateTimeZone = DateTimeZoneProviders.Tzdb[tzid];


// Finally, let's figure out what the abbreviation is
// for the instant and zone we have.

// now get a ZoneInterval for the zone and the instant
var zoneInterval = dateTimeZone.GetZoneInterval(instant);

// finally, you can get the correct time zone abbreviation
var abbreviation = zoneInterval.Name;

// abbreviation will be either PST or PDT depending
// on what instant was provided
Debug.WriteLine(abbreviation);