making digital clocks!!!! pls help!!!

i'm newbie here... hope all u guys can help me.....we were ask to build/design a digital clock that can be interchange from a normal 12hour clock to military time clock.... what will we do first? we were advice to use 7490 and 7492 ICs.... we have no idea to construct the diagram....... how will we start it......

pls help me!!!! thank you in advance!!!


godspeed everyone!!!!

There were some answers posted to your earlier post on the same subject. You minght check
https://www.electro-tech-online.com/threads/ttl-line-snoop.11801/

i've allways found that it is best to start with the output , and work your way back.