从泰语转换为英语时的日期时间转换问题 [英] Datetime conversion issue while converting from thai to english

问题描述

我有一个应用程序，用户可以选择语言，并为该语言设置当前文化。当用户选择泰语时，我面临着一个问题。由于日历比格鲁吉亚日历提前543年，日期显示为2017 + 543。这可以。但问题是，当我试图将日期从泰国文化转换为英国文化时，不知何故它增加了543年。意味着目前它是 2017 + 543 = 2560 。它增加了543年 2560 + 543 = 3103 。有谁可以帮助我吗。请注意 CurrentThread.CurrentCulture 将是泰语。这是一个代码片段



我尝试过：



< pre lang =C＃> DateTime dt = DateTime.Now;
字符串 format = MM / dd / yyyy hh：mm：ss;

System.Globalization.CultureInfo us = new System.Globalization.CultureInfo（ en-US）;
IFormatProvider culture = System.Globalization.CultureInfo.CreateSpecificCulture（ en-US）;
String strDate = dt.ToString（format）;

DateTime serverSysdate = DateTime.ParseExact（strDate， MM / dd / yyyy hh：mm ：ss，culture）;

解决方案

错误的方法！



你不应该' t将日期转换为字符串，然后转换为日期！你必须在约会上工作！

想象一下，世界上某个时区的时间不同！



欲了解更多详情，请参阅：

使用日历 [< a href =https://msdn.microsoft.com/en-us/library/82aak18x(v=vs.110).aspx\"target =_ blanktitle =New Window> ^ ]

使用日期和时间执行算术运算 [ ^ ]

如何：使用时区日期和时间算术 [ ^ ]

转换Betw een DateTime和DateTimeOffset [ ^ ]

转换时区之间的时间 [ ^ ]

如何：解决不明确的时代 [ ^ ]

如何：让用户解决不明确的时代 [ ^ ]



示例：

  //  在当地时区获取时间 
 DateTime thisTime = DateTime.Now; 
 Console.WriteLine（  {0}区域中的时间：{1}，TimeZoneInfo .Local.IsDaylightSavingTime（thisTime）？
 TimeZoneInfo.Local.DaylightName：TimeZoneInfo.Local.StandardName，thisTime）; 
 Console.WriteLine（  UTC时间：{0}，TimeZoneInfo.ConvertTimeToUtc（thisTime ，TimeZoneInfo.Local））; 
  //  获取GTB标准时区 - （GMT + 02:00）雅典，伊斯坦布尔，明斯克 
 TimeZoneInfo tst = TimeZoneInfo.FindSystemTimeZoneById（  GTB标准时间）; 
 DateTime tstTime = TimeZoneInfo.ConvertTime（thisTime，TimeZoneInfo.Local，tst）; 
 Console.WriteLine（  {0}区域中的时间：{1}，tst .IsDaylightSavingTime（tstTime）？
 tst.DaylightName：tst.StandardName，tstTime）; 
 Console.WriteLine（  UTC时间：{0}，TimeZoneInfo.ConvertTimeToUtc（tstTime ，tst））; 

I have an application where users can select language and current culture will be set for that language. I an facing issues when users select thai language. Since thai calendar is 543 years ahead from georgian calendar, date shows as 2017+543. This is fine. But the problem is when I try to convert date from thai culture to english culture, somehow it adds more 543 years. Means currently it's 2017+543 = 2560. It adds more 543 years 2560 + 543= 3103. Can someone help me please. Please note that CurrentThread.CurrentCulture will be thai. Here is a code snippet

What I have tried:

DateTime dt = DateTime.Now;
String format = "MM/dd/yyyy hh:mm:ss";

System.Globalization.CultureInfo us = new System.Globalization.CultureInfo("en-US");
IFormatProvider culture = System.Globalization.CultureInfo.CreateSpecificCulture("en-US");
String strDate = dt.ToString(format);

DateTime serverSysdate = DateTime.ParseExact(strDate, "MM/dd/yyyy hh:mm:ss", culture);

解决方案

Wrong approach!

You shouldn't convert date into string and then into date! You have to work on dates!
Imagine, a time in a world differs between time zones!

For further details, please see:
Working with Calendars[^]
Performing Arithmetic Operations with Dates and Times[^]
How to: Use Time Zones in Date and Time Arithmetic[^]
Converting Between DateTime and DateTimeOffset[^]
Converting Times Between Time Zones[^]
How to: Resolve Ambiguous Times[^]
How to: Let Users Resolve Ambiguous Times[^]

Example:

// Get time in local time zone 
 DateTime thisTime = DateTime.Now;
 Console.WriteLine("Time in {0} zone: {1}", TimeZoneInfo.Local.IsDaylightSavingTime(thisTime) ?
                   TimeZoneInfo.Local.DaylightName : TimeZoneInfo.Local.StandardName, thisTime);
 Console.WriteLine("   UTC Time: {0}", TimeZoneInfo.ConvertTimeToUtc(thisTime, TimeZoneInfo.Local));
 // Get GTB Standard Time zone - (GMT+02:00) Athens, Istanbul, Minsk
 TimeZoneInfo tst = TimeZoneInfo.FindSystemTimeZoneById("GTB Standard Time");
 DateTime tstTime = TimeZoneInfo.ConvertTime(thisTime, TimeZoneInfo.Local, tst);      
 Console.WriteLine("Time in {0} zone: {1}", tst.IsDaylightSavingTime(tstTime) ?
                   tst.DaylightName : tst.StandardName, tstTime);
 Console.WriteLine("   UTC Time: {0}", TimeZoneInfo.ConvertTimeToUtc(tstTime, tst));

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