Llegó a las diez en punto.

Llegó is the third-person singular preterite of llegar (to arrive).

It can mean:

• he arrived
• she arrived
• it arrived
• you arrived (formal usted)

The preterite is used for a completed action in the past.

The accent mark shows that the stress falls on the last syllable: lle-GÓ.

It also helps distinguish it from llego:

• llego = I arrive / I am arriving
• llegó = he/she/usted arrived

So the accent is important both for pronunciation and meaning.

Spanish often omits subject pronouns when they are clear from the verb ending or from context.

Because llegó is third-person singular, Spanish does not need to say él, ella, or usted unless the speaker wants to emphasize who it was.

So:

• Él llegó a las diez en punto = possible, but often unnecessary
• Llegó a las diez en punto = very natural

In Spanish, clock times are normally introduced with a after many verbs, especially when saying at what time something happened.

Examples:

• Llegó a las diez = arrived at ten
• Salimos a las ocho = we left at eight
• Empieza a la una = it starts at one

So a here is the normal way to say at with a specific time.

Spanish uses:

• a la una for one o’clock
• a las
  • other hours for the rest

So:

• a la una
• a las dos
• a las diez

A common explanation is that the full idea is something like a la una hora but a las diez horas, so una is singular and the others are plural.

En punto means exactly, on the dot, or sharp when talking about time.

So:

• a las diez = at ten
• a las diez en punto = at exactly ten / at ten sharp

It emphasizes that the arrival was precisely at 10:00, not a little before or after.

Yes. Llegó a las diez is completely natural.

The difference is:

• Llegó a las diez = arrived at ten
• Llegó a las diez en punto = arrived at exactly ten

So en punto is optional and just makes the time more precise.

A simple guide is:

ye-GÓ a las DYEZ en PUN-to

A few notes:

• ll in llegó is usually pronounced like y in most of Spain
• g in llegó sounds softer than English g
• z in diez in Spain is pronounced like th in thin

So diez in Spain sounds roughly like dyeth.

Yes. It can mean you arrived if the subject is usted.

So depending on context, Llegó a las diez en punto could mean:

• He arrived at exactly ten
• She arrived at exactly ten
• You arrived at exactly ten (formal)

Context tells you which one is meant.

The rest of the sentence stays the same, but llegó changes:

• Llegué a las diez en punto = I arrived at exactly ten
• Llegaste a las diez en punto = you arrived at exactly ten (informal)
• Llegó a las diez en punto = he/she/usted arrived at exactly ten
• Llegamos a las diez en punto = we arrived at exactly ten
• Llegaron a las diez en punto = they/you all arrived at exactly ten

This is a good example of how Spanish packs subject information into the verb ending.

Very often, yes.

With llegar, Spanish commonly uses a before:

• a destination: Llegó a Madrid
• a time: Llegó a las diez

So in this sentence, a is exactly what you would expect after llegar when saying the time of arrival.