KT World Clock Free app for iPhone and iPad

Supports more than 8,000 cities in the world.
Meeting planner to plan a meeting for multiple locations.
Day/Night analog clocks.
LED digital clocks with customizable colors.
Date, Month info.
24 hour format supported.
GMT build in.
Tap on clocks to config.
City name automatically populated when after a time zone is selected.

If your city is not in the list, you can select a nearby city to get the correct time zone, then manually type in your citys name. So the clock shows your citys name and the correct time.

Usually KT World Clock Free iOS app used & searched for