更新时间:2023-02-07 14:49:44
由于 SQL Server 没有为此提供开箱即用的支持,您可以考虑编写一个 .Net dll 存储过程,它利用了
Since SQL Server doesn't provide out of the box support for this, you might consider writing a .Net dll stored procedure, that makes use of the .Net TimeZoneInfo object , this object takes all rules including DST into consideration. This class allows you to convert time from one zone to another too. I hope this helps.
DateTime hwTime = new DateTime(2007, 02, 01, 08, 00, 00);
try
{
TimeZoneInfo hwZone = TimeZoneInfo.FindSystemTimeZoneById("Hawaiian Standard Time");
Console.WriteLine("{0} {1} is {2} local time.",
hwTime,
hwZone.IsDaylightSavingTime(hwTime) ? hwZone.DaylightName : hwZone.StandardName,
TimeZoneInfo.ConvertTime(hwTime, hwZone, TimeZoneInfo.Local));
}
catch (TimeZoneNotFoundException)
{
Console.WriteLine("The registry does not define the Hawaiian Standard Time zone.");
}
catch (InvalidTimeZoneException)
{
Console.WriteLine("Registry data on the Hawaiian STandard Time zone has been corrupted.");
}