Last year, with the iPhone 14 Pro, around 9:00p Friday on launch day, after showing "out for delivery", and "almost there" (on the UPS app), it updated to "rescheduled". Probably because the UPS guy just could not get everything delivered on Friday... the regular volume plus the added iPhone volume. Was rescheduled for Monday, but then Saturday morning, it showed out for delivery, and it was delivered Saturday afternoon. So UPS must have put additional Saturday deliveries....
Yesterday, at 8:00p, when I see the UPS truck (you can follow on the app), driving around my neighborhood , but constantly passing in front of my house, I finally flagged him down, and asked if he could give me my packages (two iPhone 15 Pros), and he did.