(09-07-2012, 01:53 PM)dcgrafix Wrote: I have noticed that the data in my SC card is always 1 day behind
If I were to get my card right now, on the morning of 8 Sep 2012, the most recent data it will show is for 7 Sep 2012. This is the data the machine collected as I slept last night. The night of 7 Sep 2012.
There's no waiting for data to be stored. As soon as the data for a session is collected it's transferred to the card.
If I were to take a nap right now, and then pull the card out, it would show the data for the nap I just took.
I think the roll over time for the date is local noon, but I haven't really checked that out so I can't be sure. I use SleepyHead software, so it may depend on the software you use and the local time zone you've entered into SleepyHead. In other words, if I take a nap from 2:00 pm to 3:00 pm this afternoon on 8 Sep 2012, I think that will be reported by SleepyHead as data collected on 8 Sep 2012.
The thing you don't want to do is remove the card while the machine is running. The other thing you don't want to do is sleep with the card removed. If you do that, the next time you insert the card data will get transferred, but you won't get all the data. Some of the details will be missing. At least that's the way it works with SleepyHead.