How to Say "Six Thirty" in Spanish

las seis y media

/las seis i medja/from spelling rules

To say "six thirty" in Spanish, use las seis y media.

las seis y media is used to state the time as half past six o'clock.

What does it mean word for word?

The phrase is literally composed of las (the, feminine plural), seis (six), y (and) and media (half).

To say "at" a specific time, you must prepend the preposition a to the phrase, resulting in a las seis y media.

In Spain, it is common to use the 24-hour clock for official schedules, so dieciocho treinta would be used for 6:30 PM instead of las seis y media.
While media means 'half' in this phrase, it is the feminine form of the adjective because it agrees with the hidden word hora meaning 'hour'.
The Spanish word for 'six', seis, shares its ancient roots with the English 'six' and the Greek 'héx', as they all stem from the same Proto-Indo-European ancestor.

Vuelvo a las seis y media.
I'll be back at six-thirty.
This sentence shows how to express when you will return at the time of las seis y media.
Tatoeba #1477916 by marcelostockle, translation #1370963 by Swift
Te veo a las seis y media.
I'll see you at six-thirty.
This sentence is useful for stating a meeting time of las seis y media.
Tatoeba #5024305 by don_ramon, translation #5011139 by AlanF_US
Me levanté a las seis y media esta mañana.
I got up at six-thirty this morning.
This sentence describes when you woke up at the time of las seis y media.
Tatoeba #1346402 by marcelostockle, translation #62604 by CK
Juguemos al fútbol a las seis y media. ¿Te parece bien?
Let's play soccer at half past six. Does that sound good to you?
Voy a llegar a tu casa a las seis y treinta.
I'll arrive at your house at six thirty.
Quedamos en la plaza a las seis y media.
Let's meet at the square at half past six.
La función de teatro comienza a las seis y media. ¡No llegues tarde!
The theater show starts at six thirty. Don't be late!
La cena se servirá a las seis y media en punto, sin retrasos.
Dinner will be served at exactly half past six, no delays.
4 more sentences on Tatoeba

Javier and Sofía are deciding when to meet for dinner.

Sources

IPA marked “from spelling rules” is derived from standard Spanish spelling, where Wiktionary gives none.
Word origins: Wiktionary entries las, media, seis, y, CC BY-SA 4.0.
Example sentences: Tatoeba CC BY 2.0 FR.

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