[Laughsalot]

This is my understanding as well. and and Wikipedia backs me up on it [https://en.wikipedia.org/wiki/Pacific_Time_Zone#Daylight_tim...].

Some of the software I've written _explicitly_ disables scheduling mobile notifications during the transition periods so I was also very confused by that. Your ET speculation makes sense to me. I'll bet that whatever server/containers being used for the backend were running in the Eastern Timezone.

[waffletower]

Normalizing to a zoned date (vs. an epoch representation) during a transition period is problematic. During the transition periods (unique to each daylight time zone) the temporal distance between timezones changes (increases or decreases by 1) temporarily.