Paris is UTC+1 (GMT+1) / UTC+2 (GMT+2). Los Angeles is UTC−7 (PDT) / UTC−8 (PST). Los Angeles is currently 9 hours behind Paris.
There is no overlap of standard business hours (09:00–17:00) between these two cities. Consider early morning or late afternoon calls where one side works slightly outside core hours.
Times shown in Paris local time → Los Angeles local time. Based on business hours 09:00–17:00.
Paris operates on Central European Time (CET, UTC+1) in winter and Central European Summer Time (CEST, UTC+2) from the last Sunday in March to the last Sunday in October. France's adoption of CET in 1940 during the German occupation aligned the country with Berlin time, replacing an earlier French legal time of UTC+0:09:21 (the Paris meridian). After the war, France retained CET rather than reverting, making Paris permanently one hour ahead of London in winter despite being geographically close to the GMT meridian.
Paris is the financial centre of continental Europe and hosts many major EU institutions, international organisations, and multinational headquarters. French business hours typically run 09:00–18:00 CET/CEST, with a longer lunch break than Anglo-American norms. Being in the same timezone as most of continental Europe (Germany, Italy, Spain, the Netherlands, Sweden, and more all use CET/CEST) means that Paris aligns perfectly with its major trading partners. It is one hour ahead of London in winter but shares the same UTC+1 offset as London during British Summer Time — a period when "Paris time" and "London time" temporarily converge.
French law mandates that meetings involving public agencies begin no earlier than 08:00 and end by 20:00 local time. The European Union has been debating abolishing seasonal clock changes since 2019, with member states unable to agree on whether to stay on permanent standard time or permanent summer time. Until a resolution is reached, EU countries including France continue to change their clocks twice a year in synchrony.
Los Angeles observes Pacific Time: UTC−8 (PST, Pacific Standard Time) in winter and UTC−7 (PDT, Pacific Daylight Time) during DST, which runs from the second Sunday in March to the first Sunday in November. The Pacific Time Zone covers the US West Coast, British Columbia in Canada, and parts of Mexico. Los Angeles is 3 hours behind New York, 8 hours behind London (winter), and 17 hours behind Tokyo — the largest offset between any two major business hubs, making real-time collaboration between LA and Tokyo exceptionally difficult.
California's economy is the fifth largest in the world by GDP, and Los Angeles is its entertainment and technology hub. The entertainment industry's standard workday is broadly 10:00–18:00 PT — slightly later than the East Coast norm — a schedule partly shaped by the city's car culture and long commutes. Silicon Valley, though technically in the San Francisco Bay Area (same timezone), has contributed to a global culture of asynchronous work that somewhat eases the burden of Pacific–European collaboration.
California voters approved Proposition 7 in 2018, which would allow the state legislature to enact year-round DST, but federal law changes are required before the state could actually stop changing its clocks. Until then, LA changes on the same schedule as the rest of the continental US. The Pacific–Eastern 3-hour gap means that Wall Street has been open for three hours by the time most Angelenos start their workday — a feature, not a bug, for West Coast traders who read overnight news before the market opens.
Los Angeles is currently 9 hours behind Paris.
When it is 12:00 noon in Paris, it is 03:00 in Los Angeles (based on current offsets — verify during DST transitions).
Paris observes DST, changing from GMT+1 to GMT+2. Los Angeles observes DST, changing from PDT to PST.