[英]How to convert millisecond to UTC dateTime C#
I am trying to covert millisecond to UTC dateTime.我正在尝试将毫秒转换为 UTC 日期时间。 I have managed to convert millisecond to local DateTime but not able to convert local dateTime to utc dateTime.
我已经设法将毫秒转换为本地日期时间,但无法将本地日期时间转换为 UTC 日期时间。 When I use DateTimeOffset, I am getting one hour behind so I believe this is local DateTime?
当我使用 DateTimeOffset 时,我落后了一小时,所以我相信这是本地 DateTime?
I am unable to convert local time to UTC DateTime我无法将本地时间转换为 UTC DateTime
Test Class测试班
[Fact]
public void DateTimeCalculation_MustTakeDateTimeParameter_InMilliSecond()
{
//Arrange
long startDateTimeUtc = 1626987600000; //2021-07-22 22:00:00
//Act
DateTimeOffset calculatedTimeOffset = DateTimeCalculationHelper.DateTimeCalculation(startDateTimeUtc);
var utcDateTime = calculatedTimeOffset.UtcDateTime.ToString(); //not working
var t1 = calculatedTimeOffset.ToUniversalTime(); //not working
//Assert
string actual = calculatedTimeOffset.ToString();
string expected = "22/07/2021 10:00:00 PM +00:00";
Assert.Equal(expected, actual);
}
Static class to convert DateTime to millisecond将 DateTime 转换为毫秒的静态类
public static class DateTimeCalculationHelper
{
public static DateTimeOffset DateTimeCalculation(long milSec)
{
DateTimeOffset epochTime = new DateTimeOffset(1970, 1, 1, 0, 0, 0, TimeSpan.Zero);
return epochTime.AddMilliseconds(milSec);
}
}
var longDate = new DateTime(132713856000000000);//{7/22/0421 12:00:00 AM}
var dateNow = new DateTime(2021 , 07 ,22);//{7/22/2021 12:00:00 AM}
var dateNowUTC = dateNow.ToFileTimeUtc();//132713856000000000
var utcDate = DateTime.SpecifyKind(dateNow, DateTimeKind.Utc).ToString("U");//"Thursday, July 22, 2021 12:00:00 AM"
声明:本站的技术帖子网页,遵循CC BY-SA 4.0协议,如果您需要转载,请注明本站网址或者原文地址。任何问题请咨询:yoyou2525@163.com.