Current Time in Paris

Paris's first public clock

Long before the Paris Observatory defined the city's official time, Paris already had a clock everyone could see. The Tour de l'Horloge, a corner tower of the Conciergerie on the Île de la Cité, received its clock in 1370 under Charles V — the first public clock in France, and one of the first in Europe placed where ordinary Parisians, not just monks or astronomers, could check it. The mechanism has been rebuilt more than once since, most notably with an ornate Renaissance surround added in 1585, but a clock has kept that exact corner of the Seine's central island on time for over six and a half centuries.

The meridian you can still walk

Before Paris measured longitude from Greenwich, it measured from itself. The Paris Meridian, running north–south through the Observatory, was the reference line for French maps and navigation charts for roughly two centuries, and it's the reason 19th-century French cartography reads oddly to modern eyes — distances and positions were all relative to Paris, not London. The meridian never fully disappeared: in 1994, artist Jan Dibbets embedded 135 bronze medallions stamped "ARAGO" into the pavements and squares along its former path, from Montmartre to the Observatory itself, as a tribute to the astronomer François Arago, who first precisely measured it. Anyone can still walk the old meridian today, medallion by medallion, through streets that have nothing else to do with astronomy.

The face-saving switch to Greenwich

France resisted adopting Greenwich-based time longer than most of Europe, largely for reasons of national pride — Paris had its own official Paris Mean Time, defined by the Paris Observatory. When France finally aligned with the rest of Western Europe in 1911, the law didn't say "France now uses Greenwich Mean Time." Instead it defined the new legal time as "Paris mean time, retarded by nine minutes and twenty-one seconds" — which happened to be mathematically identical to GMT, achieved without ever naming Greenwich in the text.

A republic with more time zones than any country on Earth

Mainland Paris uses only CET/CEST, but France as a whole — once its overseas territories are counted, from French Polynesia in the Pacific to Réunion in the Indian Ocean — officially spans twelve time zones, more than any other country, including Russia and the United States. It's a quiet legacy of a colonial and territorial footprint far larger than the mainland's borders suggest.

Time differences from Paris

Paris keeps the same DST calendar as most of the EU, so the gaps below mostly move only when the other city's own clock changes.

Moscow and Johannesburg are the simplest comparisons on this list, since neither changes its own clock — the gap to Paris only ever moves because Paris does.

Working hours and when to call

Most Parisian offices run roughly 9:00 to 18:00, often with a longer midday break than is typical in London or New York.

• From London: full overlap, just one hour apart.
• From the US East Coast: a Paris afternoon call (15:00–18:00) lands late morning to early afternoon in New York.
• From East Asia: a Paris morning call is a Tokyo or Shanghai late evening — workable only for time-sensitive matters.
• From Dubai: comfortable overlap through the Paris morning and Dubai early afternoon.

August is the month to plan around: many French businesses close entirely for two to four weeks as staff take their statutory summer leave.

Daylight through the year

At close to 48.9°N, Paris sees a wide seasonal swing — roughly 8 hours 15 minutes of daylight around the December solstice, stretching to about 16 hours around the June solstice. Combined with CEST pushing sunset even later in summer, Paris evenings in June can stay light past 9:45 p.m., a fact tourists visiting outside summer are often surprised isn't year-round.

How we calculate this page: the live clock, UTC offset, and DST dates above are read directly from the IANA Europe/Paris time zone data via your browser, not hard-coded. Sunrise, sunset, solar noon, and twilight times are computed from Paris's exact coordinates (48.8566°N, 2.3522°E) using standard solar position formulas, recalculated on every page load. Moon phase is derived from the current synodic month. Airport distances use the great-circle formula from those same coordinates to each airport's published location.