We learn how to build a cute little digital clock that communicates with NTP servers and displays network or internet time. We use the WeMos D1 mini to connect to a WiFi network, obtain the NTP time and display it on an OLED module.
https://ppmm.org/images/2019/12/08/3a34ea9258810bcd995a896eadd01e95.jpg
https://www.instructables.com/id/Network-Time-Digital-Clock-Using-the-ESP8266/