C# 无论设备时区如何，获取特定时区的 DateTime.Now？
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Get DateTime.Now for a specific TimeZone regardless of the device timezone?
提问by startupsmith
I have MonoTouch app which process data from a webservice. This data contains date information which is specific to a timezone. The timezone is UTC +12 which is for New Zealand.
我有 MonoTouch 应用程序，它处理来自网络服务的数据。此数据包含特定于时区的日期信息。时区为 UTC +12，即新西兰。
My app displays this data based on the current time. The problem with this is that when the app is used in different TimeZones the data isn't displayed properly because the current time on the device is incorrect.
我的应用程序根据当前时间显示此数据。问题在于，当应用程序在不同的时区中使用时，数据无法正确显示，因为设备上的当前时间不正确。
How can I get the current datetime for UTC +12 regardless of the locale/timezone setting on the device?
无论设备上的语言环境/时区设置如何，如何获取 UTC +12 的当前日期时间？
Edit:
编辑：
I have tried the following code based on the answers below:
我已经根据以下答案尝试了以下代码：
TimeZoneInfo.ConvertTime (DateTime.Now, TimeZoneInfo.FindSystemTimeZoneById("Pacific/Auckland"));
This code works fine on my computer however when I run it in MonoTouch I get the following exception:
此代码在我的计算机上运行良好，但是当我在 MonoTouch 中运行它时，出现以下异常：
System.ArgumentException: Kind propery of dateTime is Local but the sourceTimeZone does not equal TimeZoneInfo.Local
at System.TimeZoneInfo.ConvertTime (DateTime dateTime, System.TimeZoneInfo sourceTimeZone, System.TimeZoneInfo destinationTimeZone) [0x00018] in /Developer/MonoTouch/Source/mono/mcs/class/System.Core/System/TimeZoneInfo.cs:179
at System.TimeZoneInfo.ConvertTime (DateTime dateTime, System.TimeZoneInfo destinationTimeZone) [0x00000] in /Developer/MonoTouch/Source/mono/mcs/class/System.Core/System/TimeZoneInfo.cs:173
采纳答案by Rolf Bjarne Kvinge
回答by Nikhil Agrawal
Use DateTime.Now. This will give you system TimeZone Date and Time. Now convert that time to desired timezone time like this
使用DateTime.Now. 这将为您提供系统时区日期和时间。现在将该时间转换为所需的时区时间，如下所示
var indianTime = TimeZoneInfo.ConvertTime (DateTime.Now,
TimeZoneInfo.FindSystemTimeZoneById("India Standard Time"));
To get list of TimeZone run this method
要获取时区列表，请运行此方法
ReadOnlyCollection<TimeZoneInfo> zones = TimeZoneInfo.GetSystemTimeZones();
Console.WriteLine("The local system has the following {0} time zones", zones.Count);
foreach (TimeZoneInfo zone in zones)
Console.WriteLine(zone.Id);
回答by Erre Efe
You can do it like:
你可以这样做：
Datetime date = TimeZoneInfo.ConvertTime(utcDateTime, timeZone);
Just pass the given parameters.
只需传递给定的参数。
