Abu Dhabi is typically 4 hours ahead of London. When it's 12:00 PM in London, it's 4:00 PM in Abu Dhabi. UAE uses GST (UTC+4) year-round.
During UK summer time (March to October), the difference is 3 hours. During UK winter time, Abu Dhabi is 4 hours ahead of London.
Good overlap! 9:00 AM - 2:00 PM London corresponds to 12:00 PM - 5:00 PM Abu Dhabi (UK winter) or 1:00 PM - 6:00 PM (UK DST).
Abu Dhabi is the UAE capital and seat of government. Etihad Airways operates frequent flights to London, and Abu Dhabi Investment Authority has significant UK holdings.