This will be between 7AM - 11PM their time, since London, United Kingdom is 8 hours ahead of Los Angeles, California. ... Schedule a phone call from Los Angeles, CA to London, United Kingdom. UTC-7 hoursUTC+1 hour Los Angeles, CALondon, United Kingdom 8:00 AM4:00 PM 8:30 AM4:30 PM 9:00 AM5:00 PM 2 more rows