Oscar and time change?

[Grandpapa-G]

I guess its obvious this problem is related to the time change the duration of the overlap in both cases is 1 hour and the multiple sessions are not recognized in both reported cases. This is not a coincidence.  I am not sure how the wireless (cellular) polling of the data is accomplished but is it possible that during the break between sessions our data was being sent to the dme and the cpap machine was confused by the time reported by the cellular connection.  I did check back to last years March time change but I didn't see anything funny with the sleepyhead charts.