See the time in cities worldwide on iPhone
Use the Clock app to see the local time in different time zones around the world.
Ask Siri. Say something like: “What time is it?” or “What time is it in London?” Learn how to ask Siri.
Tap World Clock.
To manage your list of cities, tap Edit, then do any of the following:
Add a city: Tap , then choose a city.
Delete a city: Tap .
Reorder the cities: Drag up or down.