night light apparently doesn't take timezone into account
I'm using the night light feature on my Debian Sid and I'm quite happy with it, thanks for including this.
However, while travelling outside of my usual timezone, I noticed night light was still running in my home timezone.
I changed the timezone in the date and time settings (nowhere else, my locale, but in the night light settings, the sunrise/sunset time is still the one of my usual timezone, so off by a few hours.
restarting gnome-shell, session, or system didn't change this behaviour.