CPAP Appears That the Time Is Off

[Starlette]

Hi Everyone,

The night before showed I had around 1.5 hours of sleep. Whereas, I know for certain I slept around 5 hour.
Just now, it shows the time as 1:00am to 1:34am. Guessing, I fell asleep around 12:00am'ish.

Question: How can the CPAP calibrate to correct time to show up on daily readings?


Thank you,
Starlette