PHP Code:
$totaltime=$endtime[0]-$starttime[0]+$endtime[1]-$starttime[1];
initially, that's what i had in my hack, but the numbers were most of the time messed.. that was the issue i debated with firefly. he did the same thing here at vB.org. i cannot explain it why but this will work only in 20% of servers. as you see, there are alot of users who dont have this problem at all.. so i decided to leave it the way it is. firefly even went deeper then you think, by contacting a develloper at vB.com just to get an answer to the mistery.
leave the rest unchanged, it should work fine, the starttime must be set to zero.