Set your iPhone / iPad time automatically even while travelling

I travel very often to different locations with different timezone and my iPhone and iPad set the time automatically according to the location. You can enable this in your time settings.

You can do this by going to the settings->General->Time and opt for set time automatically as shown in the picture above.

How it works ?

Your location would be tracked by the iPhone and the time would be set according to the timezone of that particular location. iPhone has a built in GPS which takes care of this feature. This is how the map and other GPS applications work on iPhone.