Zones Provides Easy Time Zone Conversion on IPhone
iPhone: Your iPhone has a built-in world clock, but that sucks. Zones is not only the best alternative, but also a set of features that an Apple option should have.
As you’d expect, Zones allows you to add a bunch of different time zones so you can easily get a glimpse of the current time anywhere in the world. What’s more, you can change the time in any of these time zones to see what time it will be elsewhere. For example, you can set Tokyo to 14:00 on May 11 to see what time it will be in London, New York, and Los Angeles. There’s even a Today widget so you can always access that time right from your lock screen.
The app is free for four time zones, but you can pay for an in-app purchase to immediately unlock new themes and unlimited time zones on your screen.
Zones (Free / $ 2.99) | ITunes App Store