csharp-sdk-upm/RTM/Source/Internal/DataEngine/Controller/DateTimeEngine.cs

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2019-07-19 15:01:34 +08:00
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
namespace LeanCloud.Realtime.Internal
{
internal enum UnixTimeStampUnit
{
Second = 1,
Milisecond = 1000,
}
internal static class DateTimeEngine
{
public static long ToUnixTimeStamp(this DateTime date, UnixTimeStampUnit unit = UnixTimeStampUnit.Milisecond)
{
long unixTimestamp = (long)(date.ToUniversalTime().Subtract(new DateTime(1970, 1, 1))).TotalSeconds;
return (unixTimestamp * (int)unit);
}
public static DateTime ToDateTime(this long timestamp, UnixTimeStampUnit unit = UnixTimeStampUnit.Milisecond)
{
var timespan = timestamp * 1000 / (int)(unit);
DateTime dtDateTime = new DateTime(1970, 1, 1, 0, 0, 0, 0, DateTimeKind.Utc);
dtDateTime = dtDateTime.AddMilliseconds(timespan).ToLocalTime();
return dtDateTime;
}
}
}