Wrong elapsed time

Maybe you started the activity a week ago and it was paused in the background since then?

If you upload the fit file, there is a chance somebody can find an explanation. Otherwise it's just guessing.

No, that’s not the case.  For some reason 168 hours were added in the middle of my activity.

I’ve had the same issue today. A walking activity which took around 5.5 hours is showing as 174 hours. Mines on a forerunner 235, and it’s showing correctly on my watch but not in Garmin Connect. The time is added in the middle of the activity so I can’t just trim to get rid of it. I Assume it’s linked, but it’s also not showing in the feed on Strava (although I can see it if I search for it) - maybe because it thinks I haven’t finished yet?!

Hello 

I got the same issue but with swimming. At connect app some huge amounts of time are added into the laps resume, however at the watch this deviations are not shown. I think that it's a possible mismatch sharing data from the watch to the app. I already reset to factory, but the issue continues. I will reinstall connect app and try again

Did you find a solution already ? 

Got the same issue every activity is hours out?