C# 时间转换为 GMT（英国夏令时间），考虑夏令时、英国和英国的偏移关于托管地点（美国）

发布于 2024-12-12 17:11:16 字数 959 浏览 2 评论 0原文

基本上我想将美国时间（托管服务器时间）转换为GMT（英国夏令时间）

技术C#，.NET 4.0，TimeZoneInfoClass

详细场景：

我正在创建一个短信发送应用程序。它不应该从英国晚上10点到上午6点30发送短信时间或格林威治标准时间。

服务器位于美国或假设在世界任何地方。

所以我的方法是

我假设托管服务器有自动日光调整补丁。所以我不检查托管服务器夏令时。可以吗？
它会自动调整美国时间&我将通过 UTCNow()
获得正确的时间，
我从 timezoneinfoclass 或 Time.UTCNow() 方法获得 GMT 时间。现在我有了正确的 UTC 时间 &我必须检查夏令时 a/c 到英国时间（目标时区）
最后我检查目标时区（即英国）的参数，例如基于机器时间的 Datetime,UTCoffset,IsDayLightSaving,SupportDaylightSaving区域 ID（GMT 时区伦敦..）。例如：-timezoneid.local.searchbyma..(GMT) //*语法)
```
if (IsDayLightSaving==true)
{
    UTC.AddHours(1) //语法不正确
}
别的
{
    // GMT= 英国时间
}
```

OS 我有以下问题：-

请推荐

谢谢

Basically I want to convert US time (hosting Server time) to GMT (UK Summer Time)

technology C#, .NET 4.0, TimeZoneInfoClass

Detailed scenario:

I am creating a SMS sending application.It should not send sms from 10.00PM to 6.30 AM UK Time or GMT.

Server resides in US or suppose anywhere in the world.

So my approach is

I am assuming that Hosting server has Auto Day Light Adjusting Patch. So I don't check for hosting Server daylight saving. Is that Ok??
It adjust for US time automatically & I will get correct time through UTCNow()
I get GMT time from timezoneinfoclass or Time.UTCNow() method. Now I have correct UTC time & I have to check for Daylight saving a/c to UK time (targeted timezone)
lastly I check parameter for targeted timezone (i.e UK) like Datetime,UTCoffset,IsDayLightSaving,SupportDaylightSaving based on Machine Time Zone ID (GMT time zone London..). eg:-timezoneid.local.searchbyma..(GMT) //*Syntax)
```
if (IsDayLightSaving==true)
{
    UTC.AddHours(1)   //syntax is not correct
}
else
{
    // GMT= UK time
}
```

OS I Have following questions :-

Is This a good approach or flawed one ? What are the alternatives?
Should I check for daylight saving for hosting timezone & then correct the offset by adding one hour if it is DST ??
Any free reliable web services for getting GMT time?

Please suggest

Thanks