Introduction: D-duino World Clock Test(Arduino&ESP8266)
Thanks squix78 a lot, he did great work for ESP8266.
The process is very simple.
Prepare D-duino and Arduino IDE.
Download this 3 library into your Arduino library.
Then run this code into IDE
Change your WIFI_SSID and WIFI_PWD, Then compile and upload.
PureCoffee made it!