Thanks for bringing this onto my radar. I've already settled with arrow, but when I can go without it, I combine datetime with pytz, which is so much faster at

Thanks for bringing this onto my radar. I've already settled with arrow, but when I can go without it, I combine datetime with pytz, which is so much faster at applying/changing timezones than arrow. I still need to check out 3.9's built-in timezones.