[kacir]

Can I search in Calibre for books based on date and time they were added into database?

To search a book that was added before or on, say 2018, january, 8th I would search for
date:<=2018-01-08
To search for a book that was added in two days, 7th and 8th I would search for
date:<=2018-01-08 and date:>=2018-01-07

What if I want to search for books that were added on 2018, january the 8th between 20:00 and 21:59? Is there syntax for that?

I want to add several groups of books and I want to create virtual libraries based on when the books were added, I do not want to add tags to a large number of books. I do not want to wait till another day before I add another group of books to be able to create a new virtual library.