Crystal Reports Converting Seconds to Minutes

Message

   Trying to get a more precise formula for this. Currently am using this: 

whileprintingrecords;
NumberVar Days    := Truncate (global numbervar nIReady / 86400);
NumberVar Hours   := Truncate (Remainder (global numbervar nIReady , 86400) / 3600);
NumberVar Minutes := Truncate (Remainder (global numbervar nIReady , 3600) / 60);
NumberVar Seconds := Remainder (global numbervar nIReady , 60) ;
if nIReady=0
    then 0
        else
(Days*1440)+(Hours*60) + Minutes + (Seconds/60)

Is there a better way of doing this? Seems like I'm getting some numbers that are a bit off with the current formula.

Background
I have a report that logs a time everytime an agent changes state throughout the day. The first log time begins the state and the next log time ends the current state and begins the next state. To get the time I take the first log time and subtract it from the next log time to get the difference in seconds. I need to convert the seconds to minutes.

Thanks.