Quick answer
Los Angeles and London share 1 hour of business hours overlap: 8 AM PST / 4 PM GMT in winter, 8 AM PDT / 4 PM BST in summer. The gap is 8 hours year-round because both cities observe DST together. The overlap does not expand in summer. Los Angeles is in the same Pacific timezone as San Francisco — the scheduling arithmetic is identical; the industry context differs.
LA vs SF: same math, different industries
Los Angeles and San Francisco are both in the Pacific timezone (PST in winter, PDT in summer). A meeting at 8 AM in Los Angeles reaches London at exactly the same time as a meeting at 8 AM in San Francisco: 4 PM GMT in winter, 4 PM BST in summer. The scheduling challenge is identical.
The difference is industry. Los Angeles is the centre of US entertainment: film studios, television networks, streaming platforms, music labels, talent agencies, and gaming companies are headquartered here. London is a major secondary hub for all of these industries. A 8 AM Pacific / 4 PM London call between a Los Angeles studio and a London production company is structurally different from a 8 AM Pacific / 4 PM London call between a San Francisco SaaS company and its London office — even though the time is identical.
For tech and startup teams in Los Angeles (Silicon Beach, the growing LA tech scene), the scheduling dynamics and recommended approach are the same as San Francisco–London. For entertainment and media teams, there are additional considerations specific to industry working patterns.
Entertainment industry scheduling patterns
Film and television production — Los Angeles production companies and studios often operate outside standard 9–5 hours, with early call times, location shoots, and post-production sessions running into evenings. A 7 AM Pacific start for a London call (reaching London at 3 PM GMT) is more common in entertainment than in other industries — because 7 AM is already a normal call time for LA production teams. This gives London 2 hours of post-meeting time rather than 1 hour.
Streaming and digital media — Los Angeles is home to the major streaming platforms. Their London offices handle European commissioning, licensing, and distribution. Commissioning calls between LA content teams and London commissioning editors typically occur at 8–9 AM Pacific / 4–5 PM London. The 8 AM slot is standard; 9 AM (5 PM London) is occasionally used when London is the receiving party and no same-day follow-up is required.
Music and talent — Record labels, agencies, and management companies with LA and London offices use 8 AM Pacific / 4 PM London for deal calls and scheduling reviews. The 1-hour overlap is sufficient for the short, decisive calls typical of the music business. Extended negotiations are usually held in person or scheduled for LA morning / European early morning, with one side taking an unusual hour.
Gaming — Los Angeles hosts major gaming studios (Activision Blizzard, Riot Games, Naughty Dog) with London studios or publishing offices. Development sync calls follow the same 8 AM Pacific / 4 PM London pattern as tech. Production schedules, being similar to entertainment, often extend the window to 7 AM Pacific where needed.
When 7 AM Pacific is worth considering
7 AM Pacific / 3 PM London gives London 2 hours of post-meeting workday — meaningfully better than the 1 hour at 8 AM Pacific / 4 PM London. For calls where London needs to act on outcomes the same day, the difference between 1 hour and 2 hours of follow-up time is the difference between beginning a task and completing it.
In LA's entertainment industry, 7 AM calls are normal. In tech and corporate LA, 7 AM is an early sacrifice that may not be sustainable for recurring weekly meetings. The decision depends on which side values London's same-day follow-up time more highly. If London regularly needs 90+ minutes to execute on meeting decisions, 7 AM Pacific is the better anchor. If 60 minutes is sufficient, 8 AM Pacific is easier to sustain. See 7 AM PST in London for the specific conversion details.
DST and the late-March window
The US moves to PDT on the second Sunday of March. The UK moves to BST on the last Sunday of March, about 2 weeks later. During those 2 weeks, Los Angeles is on PDT (UTC‑7) and London is still on GMT (UTC+0): a 7-hour gap instead of the usual 8. During this window, 8 AM PDT = 3 PM GMT — London receives the call one hour earlier than usual and has 2 hours of follow-up time rather than 1. For scheduling an important call that requires London action the same day, this late-March window is the best available window on the LA–London route within standard Pacific work hours.
Frequently asked questions
What are the overlapping business hours between Los Angeles and London?
1 hour: 8 AM PST / 4 PM GMT in winter, 8 AM PDT / 4 PM BST in summer. Both cities observe DST, keeping the 8-hour gap constant year-round for most of the calendar. The exception: a 2-week window in late March when the gap is temporarily 7 hours.
Is LA–London scheduling the same as SF–London?
Yes, in timezone terms. Both cities are Pacific time. The scheduling math, the overlap window, and the DST behaviour are identical. The difference is industry: LA is entertainment, media, and gaming; SF is technology and venture capital. The recommended scheduling approach is the same for both.
What is the best meeting time for LA and London?
8 AM Pacific / 4 PM London is the standard slot within normal working hours. For entertainment industry teams accustomed to early starts, 7 AM Pacific / 3 PM London gives London 2 hours of follow-up time and is a viable recurring slot. For corporate and tech teams, 8 AM Pacific is more sustainable as a recurring commitment.
What time is the LA–London overlap in summer?
Still 8 AM Pacific / 4 PM London. Both LA and London shift their clocks forward simultaneously, keeping the 8-hour gap. 8 AM PDT = 4 PM BST — identical to the winter relationship of 8 AM PST = 4 PM GMT.