public const long UnixEpochDateTimeTicks = 0x89f7ff5f7b58000L; // == new DateTime(1970, 1, 1, 0, 0, 0, 0, DateTimeKind.Utc).Ticks
public static string HowLongAgo(DateTime p_timeUtc, DateTime?p_utcNow = null)
{
if (p_timeUtc == DateTime.MinValue)
{
return("never");
}
TimeSpan age = (p_utcNow ?? DateTime.UtcNow) - p_timeUtc;
return((TimeSpan.Zero <= age && age < Utils.g_1day) ? age.RoundToSecond() + " ago"
: "at " + Utils.UtcDateTime2Str(p_timeUtc));
}
public override string ToString()
{
return(Utils.UtcDateTime2Str(this.DateTime));
}
