There are two ways to say it: from six to twenty or from nine to four.

First of all, all the expressions of time can be said directly in order, such as the title, which is 1944.

Secondly, it is bounded by half a minute (that is, 30 minutes). If it is less than 30 minutes, the past time (in minutes) is used. If it is 19: 20 (less than 30 minutes), it is 9: 20. If it exceeds 30 minutes, connect minutes with to (60 minutes). If 19:44 (greater than 30), the minute is 60-44= 16, which means six to twenty.