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Air Travel/Gain/Loss of Time on Flights


Hi Roberto,

I'm not a seasoned traveller by any means but I just wanted to know how do people know what time they are on when flying by plane?

I get confused when my flight ticket says things like +1 day!

I have to take a number of flights shortly (3 within 24 hours) and I'll be going (west then east then west again) from New Zealand to Australia.  From Australia back to New Zealand.  And finally New Zealand to Los Angeles.

So if you aren't going 'just' west or 'just' east is there a way to calculate the loss/gain of time you'll experience, the real time that's actually past and how that corresponds to the flight time?  I find it all very confusing :). And added to all this you have to somehow sleep at odd times!!

So is there a way of calculating it?

Thank you.


Dear Lisa,

When itineraries show the expression +1 it means that you be arriving on your destination on the next day compared to your origin.

From Sydney to Auckland the time difference is + 2 hours.
From Auckland to Los Angeles the time difference is - 19 hours, so if you depart on a Sunday night e.g 8pm you be arriving in Los Angeles on the same day around 1pm but on the afternoon. Flying time is a litle more than 12 hours.

A good reference site for this is

It is really confused, but this is it...

Enjoy your flights!
Best Regards,

Air Travel

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Roberto Gomes


General expertise and knowledge of airport procedures related to air travel. Questions concerning baggage and cargo, pets, minors, persons with disabilities, catering, security, weight and balance, airline alliances - codeshare flights and immigration requirements. Top expert on this category with more than 900 questions answered so far (send yours to be the 1,000th). Please do not send questions regarding best fares and airport parking.


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