4 replies to this topic

[fishberg5051]

Hi everyone, I'm trying to figure out a way to do two things that seem to have been made more complicated in .NET MF. 1)Get the total number of seconds since a date/time (epoch: 1/1/1970) 2)Convert that integer to it's hex string equivalent? I used to use the TimeSpan.TotalSeconds and the .ToString("X8") to do this on a windows machine but I see in .NET MF some of these features have been removed (which I understand why) but I must admit I got lazy doing it that way that I can't figure out how to do it without I'm sure I'm overlooking something but I haven't had much luck searching the forums or google. Eventually I want to send some data over a cellular network where byte counts matter and trying to keep things as tight as possible. Any help is certainly appreciated. Cheers, Fish

[fishberg5051]

Sorry to post on my own questions but I finally found one answer I was looking for.
Maybe it'll help others...

public static long GetEpochTime()
        {
            DateTime dtCurTime = DateTime.Now;
            DateTime dtEpochStartTime = new DateTime(1970, 1, 1);
            TimeSpan ts = dtCurTime.Subtract(dtEpochStartTime);

            long epochtime;
            epochtime = ((((((ts.Days * 24) + ts.Hours) * 60) + ts.Minutes) * 60) + ts.Seconds);
            return epochtime;
        } 

[Nicky]

Good you solved it You could also have done like this: return ts.Ticks / 10000000;

[fishberg5051]

Thanks for the reply Nicky, that does seem pretty simple. I found that formula written in "C" (2nd to last line) didn't even consider ticks :S

[elettrozero]

Good you solved it

You could also have done like this: return ts.Ticks / 10000000;

 

Actually this solution doesn't work. But it worked fishberg5051 ones.