I'm using PostgreSQL, and everything I've found is only applicable to Excel
It is Applicable to Dates Data and is not Source Specific. I know the Solution to your Problem, and It is bit Lengthy and time consuming so I am not Picking Up, But your Solution Definitely Lies in those FAQs. So, I suggested you to go through.
I did go through that one. As best I can tell, it requires a separate reference table (Excel) which isn't an option for me. I assure you I have been through that page, and if there's an answer I don't understand it, hence my post.
I appreciate your time and understand if you want to pass.