OnePlus
Add a City to World Clock auf OnePlus
The World clock in the OnePlus Clock app shows the current time and weather for any city you add, which is useful when you regularly deal with contacts, meetings or flights in another time zone. On OxygenOS, this list is not managed from the main clock screen but through a separate globe icon that switches the app into edit mode.
To add or remove a city, follow this path: Open the Clock app ➔ Tap on World clock ➔ Tap on the globe symbol ➔ Select or deselect a city ➔ Tap on Back. Tapping a city name toggles it on or off for your list, so the same menu handles both adding and removing entries.
Weather data next to a city name depends on an active internet connection at the time the app refreshes, so a city without a live weather icon usually still shows the correct time. If you only need a quick time check for a single city rather than a permanent entry, using a search engine or the Clock widget on your home screen is often faster than editing the full list.
Adding cities here has no effect on alarms, timers or the stopwatch, since those run independently from the World clock section within the same app.

