Puno radno vrijeme traje osam sati dnevno.

Because vrijeme is a neuter singular noun, and adjectives in Croatian must agree with the noun in gender, number, and case.

• puno = neuter singular form of pun (full)
• radno = neuter singular form of radni (work-related / working)
• vrijeme = neuter singular noun (time)

So all three parts match:

• puno radno vrijeme

If the noun were masculine or feminine, the adjective forms would change too.

Radno vrijeme literally means working time or work time.

In real usage, it can mean a few related things depending on context:

• working hours
• office/business hours
• work schedule

In the phrase puno radno vrijeme, it means full-time work or full-time working hours.

So the sentence is talking about the standard duration of a full-time work schedule.

Traje means lasts or continues for.

It is the 3rd person singular present tense of trajati (to last, to continue, to take a certain amount of time).

So:

• Puno radno vrijeme traje... = Full-time work lasts... = A full-time schedule is... long

Croatian often uses trajati when talking about how long something continues:

• Sastanak traje dva sata. = The meeting lasts two hours.
• Film traje devedeset minuta. = The film lasts ninety minutes.

After numbers in Croatian, nouns change form depending on the number.

With 5 and higher, Croatian normally uses the genitive plural.

So:

• pet sati = five hours
• osam sati = eight hours
• deset sati = ten hours

The noun sat (hour) has:

• singular: sat
• genitive singular: sata
• plural: sati
• genitive plural: sati

So after osam, the form is sati.

A useful comparison:

• jedan sat = one hour
• dva sata = two hours
• tri sata = three hours
• četiri sata = four hours
• pet sati = five hours
• osam sati = eight hours

Dnevno is an adverb meaning daily, per day, or a day in this kind of time-expression context.

So:

• osam sati dnevno = eight hours a day

Croatian often uses adverbs like this where English uses a longer phrase:

• tjedno = weekly / per week
• mjesečno = monthly / per month
• godišnje = yearly / per year

Examples:

• Radim osam sati dnevno. = I work eight hours a day.
• Vježba tri puta tjedno. = He/She exercises three times a week.

So dnevno is very natural here.

Sometimes yes, but dnevno is more natural in this sentence.

• osam sati dnevno = the standard, smooth way to say eight hours a day
• osam sati na dan is understandable, but less idiomatic here

Croatian often prefers the adverb:

• dnevno
• tjedno
• mjesečno
• godišnje

So for a learner, osam sati dnevno is the best version to remember.

Because Croatian does not have articles like English a/an and the.

So Puno radno vrijeme can mean:

• full-time work
• a full-time schedule
• the full-time schedule

The exact meaning depends on context.

This is normal in Croatian, and learners usually need to get used to understanding definiteness from the situation rather than from an article.

Yes, it is a very common set phrase meaning full-time work or full-time employment.

A very common opposite is:

• nepuno radno vrijeme = part-time work
• sometimes also skraćeno radno vrijeme in certain contexts

Examples:

• Radi puno radno vrijeme. = He/She works full-time.
• Zaposlena je na puno radno vrijeme. = She is employed full-time.

So it is worth learning puno radno vrijeme as a whole phrase.

The word order here is natural and neutral:

• Puno radno vrijeme traje osam sati dnevno.

Croatian word order is more flexible than English, but not every order sounds equally natural.

This version follows a very common pattern:

• subject → verb → time expression

You could rearrange parts for emphasis, but the neutral textbook-style version is the original one.

For example:

• Osam sati dnevno traje puno radno vrijeme.

This is grammatical, but it sounds marked or stylistically unusual in ordinary speech.

So the original sentence is the best basic model.

Yes. Vrijeme is singular because it means time as one concept.

The sentence is not saying that the times last eight hours; it is saying that full-time work / working time lasts eight hours.

Then the duration is given separately:

• osam sati

So the structure is:

• [working time]
  • [lasts]
    • [eight hours a day]

That is why vrijeme stays singular.

A simple approximate pronunciation for an English speaker is:

POO-noh RAD-noh VRYEH-meh TRAH-yeh OH-sam SAH-tee DNEV-noh

A few helpful points:

• j is pronounced like English y
  • so traje sounds roughly like TRAH-yeh
• vri in vrijeme can be tricky; it is more like vrye
• dnevno begins with a consonant cluster dn-, which may feel unusual at first

You do not need perfect stress right away, but it helps to say it smoothly as:

Puno radno vrijeme traje osam sati dnevno.

Yes. In many contexts, this sentence sounds like a statement about the standard full-time work schedule, often in a general, official, or factual sense.

So it can mean something like:

• Full-time working hours amount to eight hours a day
• A full-time work schedule lasts eight hours per day

That makes it sound slightly formal or definitional, which fits well in administrative, workplace, or legal contexts.