FPP and Time with Real Time Clocks (RTC)

We need the time on an FPP devices so we can set timed schedules on our show, but neither a Raspberry Pi (4 & below) nor Beaglebone Black have a Real Time Clock (RTC) chip.
So how do these devices get the current time so they know when to start ??
All this & more in this weeks video.

GPS Hat Setup Guide: https://github.com/tiagofreire-pt/rpi...
Note the Adafruit Ultimate GPS Hat uses GPIO 18 NOT GPIO 4 for PPS.

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Timeline:

0:00 Introduction
2:04 Network Time Protocol (NTP)
3:30 Hats / Capes with RTC
5:20 Raspberry Pi 5 RTC
6:55 Adafruit GPS Hat
7:15 What does GPS have to do with time ?
8:35 Adafruit Ultimate GPS Hat Setup
16:17 1,150 Light Shows synced via NTP
17:25 Wrap-Up