Quick answer
10 AM Pacific Time is 6 PM in London. This lands after standard UK working hours. The Pacific–London gap is 8 hours and stays constant throughout the year because both regions observe daylight saving on the same schedule.
10 AM Pacific to London: what to know
10 AM Pacific reaches London at 6 PM — one hour past the standard UK close of business. Teams scheduling at this hour typically have London-side participants who work flexible or extended hours. If your London colleagues keep standard hours, 8 AM Pacific (4 PM London) or 9 AM Pacific (5 PM London) are more practical options.
For teams working across the Pacific–London corridor, the effective overlap window on standard hours is roughly 7–9 AM Pacific / 3–5 PM London. See the LA to London planner or the US to Europe guide for the full window.
What is 10 AM PT in London?
10 AM Pacific Time is 6 PM in London. The Pacific–to–London gap is 8 hours, maintained year-round because both the US West Coast and the UK observe daylight saving simultaneously. 10 AM PT lands after standard UK business hours.
Is 10 AM PT too late for a London call?
For teams on standard 9–5 UK hours, yes. 6 PM London is after business hours. Some UK teams with flexible schedules accept 5–6 PM calls. For a more comfortable window, 8 AM PT (4 PM London) or 9 AM PT (5 PM London) are more practical.
Does daylight saving affect 10 AM PT in London?
No. Both the US West Coast and the UK observe daylight saving on the same schedule, so the 8-hour gap is maintained year-round. 10 AM PT is always 6 PM London.
What is the latest Pacific slot where London is still at business hours?
9 AM PT is 5 PM London — the very end of business. 8 AM PT (4 PM London) is the last slot where London is comfortably within the working day. Use the LA to London planner for the full overlap.