LED clock... charlieplexing

I am attempting to make a clock out of 4 rows of LEDs each row representing one of the digits on a clock and each LED in the row representing a numeric value that indicates the time.
I am using Arduino Uno and am fairly certain that charlieplexing is the only way that I could make it work.

This is the base code that I am using.
https://create.arduino.cc/projecthub/LiLShReDdeR/charlieplexing-with-arduino-5b4ade

Is this the best charlieplexing code for my situation?
and what would be the easiest way to use the delay function for this?

This is another code that I found but haven't tested it because I am pretty new to this and have a limited knowledge of coding.

At this point any information would be helpful.

So you have 16 LEDs that you want to control from an Uno? Uno has 20 digital IO, no complicated charlie-plexing code needed. Or do you have more than 16 LEDs?

Get yourself a MAX7219, it can control up to 64 LEDs with just simple writes to its data registers. I even offer a simple breakout board so you can wire up each LED individually with simple wirewrap wire:
http://www.crossroadsfencing.com/BobuinoRev17/

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