- What is the time difference between San Francisco and London?
- London is eight hours ahead of San Francisco during winter (PST/GMT) and seven hours ahead during summer (PDT/BST). The gap briefly becomes eight hours in late March and late October during the staggered DST transitions.
- What is the best meeting time for San Francisco and London?
- The ideal window is 9–11 AM London time (1–3 AM SF time) — wait, London 9 AM is SF 1 AM. In practice: 4–6 PM London / 8–10 AM San Francisco (PDT). Or 9–11 AM San Francisco / 4–6 PM London.
- Why does the San Francisco–London gap change four times a year?
- The US and UK change their clocks on different dates. The US moves in mid-March; the UK moves in late March. In that two-week window, and again in late October to early November, the gap is temporarily eight hours even in “summer.”
