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Horloge mondiale

Affichez simultanément l’heure locale de plusieurs métropoles internationales.

Your world clock

ZoneTimeDateUTC offsetDayRemove

Up to 12 zones. The list is saved in this browser only and is never sent anywhere.

Comment ça marche

  1. Each update re-reads the system clock and renders the current instant as wall time in every zone on your list; offsets are resolved per row, so daylight saving is always right.
  2. The "Day" column compares each zone’s calendar date with your own zone’s, marking previous day / next day so a date change never sneaks up on you.
  3. Your list is saved in this browser’s localStorage and restored on the next visit: no account and nothing transmitted.

Bon à savoir

  • Up to 12 zones at once; remove rows individually.
  • If storage is unavailable (such as in some private modes), the clock still works for the session; the list is simply not remembered.
  • Cities sharing an IANA zone (e.g. New York and Boston) always show identical times by definition.
Fuseaux horaires

Heure actuelle par ville

Trouvez l’heure exacte, le fuseau horaire et le régime d’heure d’été pour des centaines de villes.

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Fuseaux horairesEn vedette

Convertisseur de fuseaux horaires

Convertissez dates et heures entre deux fuseaux IANA du monde.

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Convertisseurs d’heureEn vedette

Heure UTC actuelle

Consultez l’heure officielle en temps universel coordonné (UTC) en direct.

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Fuseaux horairesEn vedette

Planificateur de réunions internationales

Trouvez le créneau horaire idéal pour vos réunions réunissant plusieurs pays.

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Foire aux questions

Is my city list sent anywhere?
No. It is saved only in your browser’s localStorage so it survives reloads. Clearing site data removes it; nothing is transmitted or synced.
Does the clock stay accurate in a background tab?
Yes. Each update reads the system clock fresh and the page resyncs when you return, so background throttling can never make the display drift.
Why is the same city listed under different zones?
The picker uses IANA zone identifiers, and some territories share a zone (for example, much of western Europe uses Europe/Paris); their clocks agree by definition.