My friend and I have booked a cruise next year SFO to SYD, and are arranging our own flights. The cruise is 30 odd days, and my friend has small children so can only spare a couple of days at each end of the cruise. Here's my problem, I can't work out the time differences especially between here and Sydney!!! If we disembark early one morning, use that day and the following one for sightseeing, and she flies back to UK on the third day, how many actual days does that mean she takes to get home since disembarking