Hanoi is 7 hours ahead of London during GMT, and 6 hours ahead during BST. When it's 12:00 PM in London (winter), it's 7:00 PM in Hanoi. Vietnam does not observe DST.
Vietnam uses ICT (UTC+7) year-round while the UK switches between GMT (winter) and BST (summer). The difference is 7 hours in winter and 6 hours in summer.
Morning London works best! 8:00 AM - 11:00 AM London (winter) corresponds to 3:00 PM - 6:00 PM Hanoi. Morning calls catch Hanoi's afternoon.
Vietnam is one of the fastest-growing economies in Southeast Asia with increasing UK business ties in manufacturing, tourism, and technology. Vietnam Airlines operates direct flights.