// System.DateTimeOffset [__DynamicallyInvokable] public static DateTimeOffset FromUnixTimeMilliseconds(long milliseconds) { if (milliseconds < -62135596800000L || milliseconds > 253402300799999L) { throw new ArgumentOutOfRangeException("milliseconds", string.Format(Environment.GetResourceString("ArgumentOutOfRange_Range"), -62135596800000L, 253402300799999L)); } long ticks = milliseconds * 10000L + 621355968000000000L; return new DateTimeOffset(ticks, TimeSpan.Zero); }
// System.DateTimeOffset
[__DynamicallyInvokable]
public static DateTimeOffset FromUnixTimeSeconds(long seconds)
{
if (seconds < -62135596800L || seconds > 253402300799L)
{
throw new ArgumentOutOfRangeException("seconds", string.Format(Environment.GetResourceString("ArgumentOutOfRange_Range"), -62135596800L, 253402300799L));
}
long ticks = seconds * 10000000L + 621355968000000000L;
return new DateTimeOffset(ticks, TimeSpan.Zero);
}
// System.DateTimeOffset [__DynamicallyInvokable] public long ToUnixTimeMilliseconds() { long num = this.UtcDateTime.Ticks / 10000L; return num - 62135596800000L; }
// System.DateTimeOffset
[__DynamicallyInvokable]
public long ToUnixTimeSeconds()
{
long num = this.UtcDateTime.Ticks / 10000000L;
return num - 62135596800L;
}
为了这四个方法特意装了VS2015,你没看错，是2015
System.DateTimeOffset 中新增的Unix 时间戳方法
原文：http://www.cnblogs.com/binsys/p/4098363.html