How to Say "Eastern Daylight Time" in French

heure avancée de l'Est

/œʁ a.vɑ̃.se d(ə) l‿ɛst/feminine

heure avancée de l'Est is the French term for Eastern Daylight Time.

Meaning: time zone (name)

Which one should you use?

heure avancée de l'Est refers specifically to daylight saving time, while heure normale de l'Est is used to refer to Eastern Standard Time.

Because the noun heure is feminine, the adjective avancée must take the feminine form by including an extra e at the end.

/œʁ a.vɑ̃.se d(ə) l‿ɛst/

The French term for 'time zone', fuseau horaire, literally translates to 'time spindle'. This refers to the shape of the longitudinal slices on a map that define the zones.
The French word heure descends from the Ancient Greek ὥρα, which originally meant 'season' or 'year' rather than a specific sixty-minute unit.
French speakers often avoid the technical phrase heure avancée de l'Est in daily life, opting instead for l'heure d'été, which simply means 'summer time'.

La téléconférence internationale est prévue pour 9 heures, heure avancée de l'Est.
The international conference call is scheduled for 9:00 AM Eastern Daylight Time.
Le webinaire débute à 14h HAE (Heure Avancée de l'Est).
The webinar starts at 2 PM EDT (Eastern Daylight Time).
Retrouvons-nous pour l'appel vidéo à 20h30, heure de l'Est.
Let's meet for the video call at 8:30 PM Eastern Daylight Time.
Le concert commence à 19h EDT (Eastern Daylight Time).
The concert starts at 7:00 PM EDT (Eastern Daylight Time).
L'heure avancée de l'Est est actuellement en vigueur.
Eastern Daylight Time is currently in effect.

Nathan and Léa are scheduling a business call.

Nathan

On s'appelle demain à 14h ?
Shall we call tomorrow at 2 p.m.?
Léa

Oui, mais c'est à l'heure avancée de l'Est ?
Yes, but is that Eastern Daylight Time?
Nathan

Oui, c'est l'heure de New York.
Yes, it is New York time.
Léa

C'est parfait pour moi, Nathan.
That is perfect for me, Nathan.

Sources

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