Although the included Time app from Apple serves enough, Time Zones + World Clock Time Converter (free with in-app purchase) goes Apple a few steps better.
The attractive GUI showcases the ability to rename places, so you can call a location “Mom and Father”. The app displays the time differential in hours for all the areas you enter, and a ‘fast check’ mode lets you seek out a date and time anywhere in the world, transforming it to your local time. I could see that working for business employ different time zones.
As the day moves along, the colors of the GUI change to mirror the time of day.
The app is ad supported, and when you open the app a complete page ad shows up that has actually to be dismissed, which I judge mildly intrusive. A in-app purchase of U.S. $ 4.99 eliminates the advertisements, however I think that is a bit too pricey. I’m getting along with the free version, and if the designer would reduce the purchase rate to $ 0.99 I believe he would get even more takers.
Time Zones + World Clock Time Converter is a perfectly done app. It’s better that what Apple supplies, and has a good feel and look.
The app requires iOS 7 or later. It appeared to work fine using iOS 8 beta 5, so I do not predict any problems going ahead.
Another app with similar functions is World Clock Time Zone. It’s free too however has a $ 1.99 in-app purchase which removes the ads. The screens are a little even more messy, so I prefer Time Zones + World Clock Time Converter for quick ease of use.