Elapsed Time Challenge

This is a tricky one! Read carefully!

Ms. Earl flew from Vancouver to Montreal with a stop
in Winnipeg to switch planes. The flight from Vancouver
to Winnipeg was 2 hours and 30 minutes long. Ms. Earl
was in Winnipeg for 2 hours and 15 minutes, and her
flight from Winnipeg to Montreal was 1 hour and 45
minutes long. Ms. Earl landed in Montreal at 7:30 P.M.
What time did Ms. Earl's first flight leave Vancouver?

Include A.M. or P.M. in your answer (for example, 11:58 A.M.).

Your solution is due on Monday. Please be sure to show
your thinking (on a time line, chart, clocks, etc.) and your answer.