Write an function that converts time into the corresponding english words - eg. '8:30' -> half past eight
- 2:00 > two o'clock
- 2:03 > three past two
- 2:11 > eleven past two
- 2:15 > quarter past two
- 2:30 > half past two
- 2:33 > twenty seven to three
- 2:40 > twenty to three
- 2:55 > five to three