You can obviously work out the angle at any other hour, by multiplying. At two o'clock (or ten o clock) it's 60 degrees; at three (or nine) it's 90; at four (or eight) it's 120; at five (or seven) it's 150; and at six it's 180.
At any other times it's more complicated, but you can work it out if you need to. You just need to remember that the angle between each pair of adjacent numbers is 30 degrees. For example, at half past twelve it's 180 minus one half of thirty, which is 165 degrees. At a quarter to five (say) it's 90 plus 30 plus one quarter of 30, which is 127.5 degrees.
© Haydn Thompson 2017