Wait, I just realized accepting the DST shift is absurd. The sun doesn’t actually rise at a different time. That curve should be continuous, somehow. And the dots are probably off by the same amount.

I think you want some form of d3.utcDay.

Ok, I fixed the sunrise and sunset, but the dots during the winter are off because you recorded them in local clock time. I think we need Luxon or something.

For "sanity," I think you want the raw data as-is, but you want the y-axis of time to be in always-PST or always-PDT.

hahah i missed these comments. a classic mess! timezones, the graveyard of empires. but personally i don't think the DST discontinuity is absurd. the y-axis represents the position of the hands of a well-set clock in san francisco; that clock's position when the sun comes up really does undergo a step-change one day. i might just assert ownership here and revert…

radical clock time realism, "time is just what a clock says"

yeah feel free to revert

Red-masked parakeets https://ebird.org/species/rempar/US-CA-075? Listen to the audio on that page.

Ooh yeah!! "Flock calls" audio sounds right. I'll add… oh man now I could make it play at the right historical times of year like a cuckoo clock lol…