[brackett]

I'd guess it's a UNIX timestamp - meaning, the number of seconds since 1/1/1970. In this case, it converts to 9/27/05 16:00:26 (GMT).

I don't think there's any built in conversion in .NET, so you'd just do it manually:

private static DateTime EPOCH = DateTime.Parse("1/1/1970")
public static DateTime UnixToDateTime(int timestamp) {
   return (EPOCH + TimeSpan.FromSeconds(timestamp)).ToLocalTime()
}