Which one of the following cities does not have the same clock time as that of the other three cities at any given instant?

Addis Ababa (Ethiopia) observes East Africa Time (EAT), which is UTC+3; timeanddate shows London is three hours behind Addis Ababa, confirming this offset. London (UK) and Lisbon (Portugal) normally use Greenwich Mean Time / Western European Time (UTC+0) and, along with Accra (Ghana) which observes GMT year‑round, can share the same clock time when the European cities are on standard time. The UK and Portugal may shift to UTC+1 during daylight saving (BST/WEST), while Addis Ababa stays at UTC+3 throughout the year, so Addis Ababa never has the same clock time as the other three simultaneously.