Make Own customised Time picker with js ?

Question

i want to make a picker with days, hours, min and sec no am or pm ....

i saw this project ------>>> https://github.com/nehakadam/AnyPicker

https://nehakadam.github.io/AnyPicker/

But i don't known how it works and how to costomise it

help me to find it ,

Answer 1

https://code.sololearn.com/WO46mePImjEu/?ref=app
https://code.sololearn.com/WK3pQF1qU6pp/?ref=app
https://code.sololearn.com/WQjoHEZe607s/?ref=app
https://code.sololearn.com/Wi725Ew2sXSF/?ref=app
https://code.sololearn.com/WYbEYCvMmUyJ/?ref=app