Imamo isto radno vreme.

Imamo means we have.

In Serbian, the verb ending already shows the subject, so you often do not need to say mi (we). The ending -mo tells you it is first person plural.

• imam = I have
• imaš = you have
• ima = he/she/it has
• imamo = we have

So Imamo isto radno vreme naturally means We have the same working hours / the same work schedule.

You could say Mi imamo isto radno vreme, but mi would usually add emphasis, like We have the same hours.

Because isto agrees with radno vreme, and vreme is a neuter singular noun.

The basic dictionary form isti is the masculine singular form of same. Serbian adjectives and adjective-like words must agree with the noun in gender, number, and case.

Here the noun phrase is:

• vreme = time / schedule, neuter singular
• radno vreme = working hours / work schedule

So same must also be neuter singular:

• masculine: isti
• feminine: ista
• neuter: isto

That is why you get isto radno vreme.

Radno vreme is a very common fixed expression in Serbian. It usually means:

• working hours
• business hours
• work schedule
• sometimes opening hours, depending on context

Word by word:

• radno = work-related / working
• vreme = time

But together, radno vreme functions as a natural expression, so it is best learned as a whole phrase.

Examples:

• Koje je vaše radno vreme? = What are your working hours?
• Prodavnica ima kratko radno vreme. = The shop has short opening hours.

For the same reason as isto: it agrees with vreme, which is neuter singular.

So in isto radno vreme, both words match vreme:

• isto = same, neuter singular
• radno = working, neuter singular
• vreme = time / schedule, neuter singular

This kind of agreement is very important in Serbian.

Yes. After imati (to have), the direct object is normally in the accusative.

So in meaning, radno vreme is the object of imamo.

However, for this noun, the form does not change visibly here:

• nominative: vreme
• accusative: vreme

Also, the modifiers stay the same in this neuter singular form:

• isto radno vreme

So even though the phrase is functioning as an accusative object, it looks the same as nominative.

Yes, literally it is something like We have same working time / working hours.

Serbian has no articles like a or the, so whether English uses a, the, or no article at all depends on context and natural translation.

In this sentence, the most natural English translation is usually:

• We have the same working hours.
• We have the same work schedule.

English needs the same, while Serbian just uses isto.

Yes, Serbian word order is more flexible than English word order, but some orders sound more neutral than others.

The most neutral version here is:

• Imamo isto radno vreme.

You may also hear:

• Isto radno vreme imamo.

This can sound more emphatic, as if focusing on the same working hours.

English is much less flexible, so you usually keep:

• We have the same working hours.

Yes, in many contexts that is a very natural English translation.

Depending on the situation, Imamo isto radno vreme could be translated as:

• We have the same working hours.
• We work the same hours.
• We have the same schedule.

The exact English version depends on what kind of radno vreme is meant:

• office hours
• shift times
• general schedule
• opening hours, if talking about businesses

It might be understandable in some contexts, but isto radno vreme is the more natural choice if you mean the same working hours / an identical schedule.

A useful distinction is:

• isti / isto / ista = the same
• jednak / jednako / jednaka = equal

So:

• isto radno vreme = the same schedule / identical working hours
• jednako radno vreme might sound more like equal in amount, which is less idiomatic here

For this sentence, isto radno vreme is the phrase a learner should remember.

You just change the verb form of imati:

• Imam isto radno vreme. = I have the same working hours.
• Imaš isto radno vreme. = You have the same working hours.
• Ima isto radno vreme. = He/She has the same working hours.
• Imamo isto radno vreme. = We have the same working hours.
• Imate isto radno vreme. = You (plural/formal) have the same working hours.
• Imaju isto radno vreme. = They have the same working hours.

The phrase isto radno vreme stays the same here.