Hi Trish G,
Flight times may be subject to change until you receive your final documents - which is approximately 2 weeks before departure. Unfortuneately, we do not to our customers unless the change is significant i.e. over 3 hours or has an effect on your holiday. The first day is always a travelling day, therefore nothing will be missed off the itinerary.
I hope this helps.
Kindest reagrds,
Monty