Work, work, work

This task is about doing calculations with time.
 
 
Whaea Elena is very tired and falls asleep at 7:00 p.m. She wakes at 8:30 p.m., and irons for 2 1/4 hours.
She goes to bed immediately and sleeps until 6:30 a.m. the next morning.
 
a) What time did Whaea Elena finally go to bed? __________
 
b) Draw the hands on the three clock faces below to show:
 
  i) the time Whaea Elena started ironing


 

  ii) the time Whaea Elena finished ironing


 

  iii) the time Whaea Elena woke up in the morning