I use this model and it has a bug: when I set a configuration that uses the 'sun' mode at 23h (11pm to 12am) and the 'moon' mode at 0h (12am to 1am) it doesn't switch off when it's 0:00h, and heating remains powered-on during all the night. So, if you want it to power off at 0h (12am), you can set the clock 1 hour earlier (i.e. set 7:35h when it's 8:35h) and configure it in 'sun' mode at 22h and 'moon' mode at 23h to avoid this bug.