“WiFi Kit 32 NTP Clock is another of my learning forays into the numerous features of the ESP32.
During startup, the clock obtains the current date and time from an ntp server, adjusts for time zones (see the Software step), writes the result to the ESP32 rtc (real time clock), then uses the ESP32 rtc to update the built in OLED display with the date and time.
The source code is included in the Software step and should be documented well enough to explain how it works. If you have any questions, please feel free to comment and I will do my best to answer them.”