As Neil has mentioned your phone should automatically adjust when it picks up 
its location in the new time zone as it has GPS

On your MB you need to have "Set Time Zone automatically using current 
location" in System Preferences > Date & Time - Time Zone.
You need to Turn on WiFi to determine your current location.

Cheers,
Ronni

Sent from Ronni's iPad4

On 09/06/2013, at 4:32 PM, Neil Houghton <[email protected]> wrote:

> Well, your phone has inbuilt GPS and will automatically check for network 
> access and soon obtain the info to know where it is – the macbook has to get 
> that info from somewhere.
> 
> According to this  
> <http://www.macosxtips.co.uk/index_files/automatically-set-time-zone-by-location.php>
> Generally your Mac won’t have GPS, so instead this works by checking the 
> visible Wi-Fi networks against a database of their locations. As a result 
> this only works when your AirPort is turned on, but it isn’t necessary for 
> you to be connected to the internet through it. Of course this also works 
> much more accurately in urban areas where there are lots of Wi-Fi networks 
> around.
> 
> So, did you have your macbook turned on, with Airport turned on, whilst in 
> range of local wi-fi networks?
> 
> HTH
> 
> 
> Cheers
> 
> 
> Neil
> -- 
> Neil R. Houghton
> Albany, Western Australia
> Tel: +61 8 9841 6063
> Email: [email protected]
> 
> 
> on 9/6/13 15:51, Stuart Breden at [email protected] wrote:
> 
> An interesting question about international travel.
> 
> I went on a conference in South America recently.  
> 
> As you know when you fly east from Australia you cross the international date 
> line.
> 
> Presumably both the iPhone and MacBook Pro would adjust to local time if you 
> set the Settings and System Preferences correctly.  I did this supposedly but 
> had problems with my Mac Book Pro.
> 
> Hints or suggestions?
> 
> Stuart Breden
> PO Box 132
> Kalamunda WA 6926
> Ph: (08) 9257 1577
> Mbl: 0417 053 266
> 
> Please consider the environment before printing this email
> 
> 
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