How to Build a Rescission Calendar in Rails

Hey everyone,

I’m sorta new to ruby on rails and I need a little help in thinking
through something with a calendar. I have a client that wants a
rescission calendar on his site. Best example of this would be found at
this website Typically
rescission dates are 3 days from the day you sign a contract unless you
signed on a Saturday then it wouldn’t be for 4 days as Sundays don’t
count. So in short I want to build the same thing this company has but
in rails and it doesn’t have to be connected to a database.

Could anyone help me with this part?