Sorry if this has already been brought up...
I cannot find a way to display the cumulative time on my Forerunner 245 device. If I download the run, all the data is there in Garmin Connect (I use the desktop version). The cumulative time is the third column - right after lap number and lap time. That's right where it should be - it's the third most important piece of data that I want to see.
If I review the run on the device, I can see the times for each lap. If I drill down into the lap data, I see a whole bunch of stuff: calories, cadence, avg. HR, max HR, etc. I *don't* see the one piece of data that would really be useful - the cumulative time.
I don't know how in the world this software made it out the door. In this regard, my $300 Garmin is less functional than my $30 Timex Ironman. (Or any other stopwatch I've ever seen.)
I don't know how to find the version of the software on the device. I do run several times per week and update the software whenever something's available. So I assume it's whatever the latest software version is.
I also have my watch set to automatically use one mile laps.