The Arduino high-precision digital clock is a multi-module DIY combination that uses The Most Complete UNO Starter Kit.
Welcome to my blog for a tutorial on this project:https://kuongshun.com/blogs/project/arduino-high-precision-digital-clock 
Why on Earth have you got an LCD using all those pins and not an I2C one? That's insane.
This 37pcs In 1 Sensor Kits is great!
The sensors inside are very complete and are very suitable for the present 
@kuongshun, do not cross-post. Threads merged.
@kuongshun, do not post advertisements to the technical areas of the forum.
kuongshun:
suitable for the present
Why, do they expire?