May I too support this system of year-month-day, with the possibility of hour-minute to follow. I started using this many years ago after seeing an astronomer write a date that way. At that time it seemed to run counter to all accepted standards, but I have since seen the merit of it.

Since that time computers have come along, and if you write your dates that way they will order your titles chronologically, after any preceding characters.

In text, while keeping to that order, you can follow the IoMFHS request to name months, rather than number them.