My iPhone doesn't show a world map with time zones

The built-in Clock app on iPhones doesn't display a world map with various time zones. However, there are alternative ways to see multiple country times on your iPhone:

World Clock:

1. This lets you add specific cities and see their current times. Here's how to use it:
   1. 1. Open the Clock app.
      2. Tap the "+" icon on the top right corner.
      3. Search for the city you want to add and tap on it.
2. You can add multiple cities this way.

World Clock Widget:

1. This provides a quick view of multiple time zones on your home screen or lock screen.
2. Add the "World Clock" widget following these steps:
3. Go to your Lock screen (swipe down from the top right corner).
4. Long press on the screen and tap "Customize."
5. Tap "Add Widgets" and scroll down to "Clock."
6. Choose "World Clock" and tap it to add it.
   1. You can edit the cities displayed by tapping on "World Clock".

While these methods don't offer a world map view, they help keep track of time in different countries.

Is it possible that you are thinking of the Standby feature new to iOS 17? This article might help. Use StandBy to view information at a distance while iPhone is charging – Apple Support (UK)

Does this help?

See the pic below: iPhone 12 Pro iOS 17.4.1, Exactly the same view is available on iPhone 8 iOS 16.7.7 and iPhone SE 1st Gen iOS 15.8.2