DateTimeExtension

DateTimeExtension.cs

public static class DateTimeExtension {
  public static Int64 Epoch(this DateTime date)
  {
    DateTime epoch = new DateTime(1970, 1, 1, 0, 0, 0, 0, DateTimeKind.Utc);
    return Convert.ToInt64((date - epoch).TotalMilliseconds) ;
  }

  public static DateTime ToDateTime(this long unixTime)
  {
    DateTime epoch = new DateTime(1970, 1, 1, 0, 0, 0, 0, DateTimeKind.Utc);
    return epoch.AddMilliseconds(unixTime);
  }
}