L’horloge indique huit heures et quart.

L’ is the shortened form of la.

Horloge is a feminine noun, so its normal singular definite article is la. But in French, la becomes l’ before a vowel sound or a silent h. Since horloge begins with a silent h, you get:

• la horloge ❌
• l’horloge ✅

Also, the h in horloge is not pronounced.

Because French tells time using heure(s), and with numbers greater than one, it is plural:

• une heure = 1:00
• deux heures
• huit heures

So huit heures is literally eight hours in structure, even though in English we say eight o’clock.

In French time expressions, et quart is a fixed idiomatic expression meaning quarter past.

So you say:

• huit heures et quart = 8:15
• trois heures et quart = 3:15

You normally do not say et un quart when telling the time.

However, un quart does appear in other expressions, such as:

• un quart d’heure = a quarter of an hour / 15 minutes

It is grammatical and natural, but it is not the most common direct answer to What time is it?

If you are simply telling the time, French usually says:

• Il est huit heures et quart.

The sentence you were given,

• L’horloge indique huit heures et quart.

means that the clock shows 8:15. So it is especially natural when you are talking about what a clock says or displays.

Indique is the third-person singular form of indiquer, which means to indicate, to show, or to point to.

Here it means that the clock shows that time.

Other possible verbs in similar contexts are:

• marquer = to show / indicate
• afficher = to display

For example:

• L’horloge indique huit heures et quart.
• L’horloge marque huit heures et quart.

All are understandable, though indiquer sounds neat and standard.

Because here the time is the direct object of the verb indique.

The sentence structure is:

• L’horloge = subject
• indique = verb
• huit heures et quart = what the clock indicates

You use à when you mean at a certain time:

• Le train part à huit heures et quart. = The train leaves at 8:15.

But after indiquer, you do not use à:

• L’horloge indique huit heures et quart. ✅
• L’horloge indique à huit heures et quart. ❌

Yes, the t is pronounced here.

A rough pronunciation is:

• huit heures ≈ weet-uhr

More carefully, the h of heures is silent, so the words run together smoothly.

Also:

• horloge has a silent h
• heures has a silent h

So neither word begins with an English-style h sound.

Yes. That is also correct.

Both of these mean 8:15:

• huit heures et quart
• huit heures quinze

The difference is mostly style:

• et quart sounds more like the traditional way of telling time
• quinze sounds more like reading exact minutes, and can feel slightly more digital/schedule-like

Both are common and useful.

Because it refers to one quarter of an hour.

In this expression, French uses quart as part of a fixed time phrase:

• et quart = and a quarter
• moins le quart = quarter to

Since there is only one quarter involved, quart stays singular.

Yes, it can.

In everyday speech, French often relies on context, so huit heures et quart can mean either 8:15 a.m. or 8:15 p.m.

If you want to make it clear, you can say:

• huit heures et quart du matin = 8:15 in the morning
• huit heures et quart du soir = 8:15 in the evening

In more formal contexts, especially timetables or official announcements, French often uses the 24-hour clock:

• vingt heures quinze = 20:15

Yes. Horloge usually refers to a clock, especially one on a wall, tower, or public building.

Compare:

• une horloge = a clock
• une pendule = a clock, often a household clock
• une montre = a watch

So l’horloge indique... specifically suggests a clock rather than a watch.