I don't order my files by "time", it just makes a mess.
I love collecting images and i also use them for designs and inspiration for drawings and stuff i make, i do something similar with folders of videos and ebooks, word documents, etc. but the Music and Images folders are the most complex of all of them, i will just give examples of those. It also motivates me to study and learn about the things i save, for example biology and taxonomy.
let's go for Music files first for example:
Music:
I add alphabetical folders (A, B, C, D, etc.), inside i add folders with the names of bands or artists, i don't add albums since i often don't have so many songs of one artist.
Sometimes i leave "logic" aside though, for example, there are songs that i want to listen at specific times, when i want to chill or something, there are a lot of songs that would make me feel like that but they are from different artists or even genres, so i create a specific folder for those, to get them all in one place with easy access, so it makes sense right? same thing happens with more relaxing and even meditation tracks, i also have a specific folder for "instrumental" music, inside i have bands, and OSTs, inside of OSTs i have folders for Movie's ost and videogames ost.
Now with images and wallpapers, i add folders with specific names, deviding things for what they are and their characteristics, not alphabetical, for example, i have a folder called "Machines", inside i have folders called "Air, Land, Sea" and inside folders of "ships, cars, aircraft, etc." folders, and inside i have more folders with WW2 airplanes, helichopters, classic cars, trucks, modern cars, boats, warships, sail ships, inside their respective folders, and inside those i have folders with specific names of the vehicles.
I also have another folder called "entertainment", where i have folders for movies, anime, series, comics, videogames, and again more folders inside. Another one is called "Earthians" (yeah i'm thinking of another name xD) and inside i have a biological classification of a whole lot of species on earth, i love animals, and i have artistic photos of humans too in their respective classification.
Not all of it makes perfect sense and i'm still working to improve it, but it has worked so far to make things easier for me, i think everyone should experiment with whatever method is better for them just to make things easier, even if it doesn't make perfect "sense" to the eyes of someone else, if it makes things easier and more fluid for you, then it makes sense.