I have night node activated Monday - Friday 2000-0800 and weekends set as Saturday and Sunday 0000 - 2359 with 'Shift night mode' checked. Alerts aren't switched off on Friday evenings between 2000 and 2359. Everything works fine every other day of the week.
I'll have to sit down and think what the above settings really mean, the "shift night mode" has special cases for
Friday and Sunday night "the night before the weekend" and "the last night of the weekend", to better fit with what "weekends" mean:
- Night mode, 10pm-8am (say)
- Sat, Sun, "shift" to 11pm-10am, non-working days, usual to go to bed later and to get up later
What this will do is:
- On Friday, the "enter night mode" will be 11pm, even though it's still Friday -- because the *next* day is the weekend (Saturday), and so it's expected that "the user" will go to bed later on Friday night (and get up later on Saturday).
- On Sunday, the "enter night mode" will be 10pm, even though it's still Saturday -- because the *next* day is not the weekend anymore (Monday), so it's expected that "the user" will go to bed earlier on Sunday night, to get up early on Monday.
Now the night mode not kicking in at all is a bug. I will write it down to investigate (fortunately, I've got very detailed unit tests for night mode logic).
But I also would like to suggest using "all day" for your weekend days, not "shift night mode", since it seems to fit what you're actually trying to do.