when you use mostly the Indoor profile without GPS the Edge 830 loosing his time and it is not syncron to NTP servers or GPS time, it is starting with 1 minute delay and will be more, when you don't change to a outdoor profile and sync with GPS!
Today my indoor ride again did not save, because I use my Edge only in my house it very often loose current time, and when it has not correct time it did not save workouts. I realized that when I finish…
Also tested and it was fixed other than managing the timezone change which still required GPS.
I've not ridden outside for a few weeks now and it's been perfect (DST aside) whereas previously the clock would be way out after a couple of days.
with timezone change you mean Winter to Summer Time and vice versa only?
Yes exactly. Not a huge deal as it only happens twice a year but still be nice to have it resolved.