Read 14:30 as 2:30 pm — convert to and from am/pm with the +12 / −12 rule
Change the hour (0–23) and minute with − and +, then read both clocks.
Hour (0–23)
Minute
24-hour
14:30
12-hour
2:30 pm
Evening (pm): subtract 12 from the 24-hour hour to get the 12-hour hour.