Oh jeez, it's been a long time since I learned how to read a clock but I think I learned along with a digital clock and being tested by comparing the two.
Like, one question might show a digital clock reading 3:35 and have four analog clocks reading different times to choose from to match (only one was a match). And visa versa with an analog clock reading 12:15 and four digital clocks reading different times and finding the match.