Addis Ababa is 3 hours ahead of London during GMT, and 2 hours ahead during BST. When it's 12:00 PM in London (winter), it's 3:00 PM in Addis Ababa. Ethiopia does not observe DST.
Ethiopia uses EAT (UTC+3) year-round while the UK switches between GMT (winter) and BST (summer). The difference is 3 hours in winter and 2 hours in summer.
Good overlap! 9:00 AM - 5:00 PM London corresponds to 12:00 PM - 8:00 PM Addis Ababa (winter). Full overlap with Ethiopian business hours.
Addis Ababa hosts the African Union headquarters and is Ethiopian Airlines' hub - Africa's largest airline. The city is a major diplomatic and business center for the continent.