امروز از ساعت هشت در دانشگاه کلاس دارم.

A word-by-word breakdown is:

• امروز = today
• از = from
• ساعت هشت = eight o’clock
• در = in / at
• دانشگاه = university
• کلاس = class
• دارم = I have

A very literal translation would be:

Today, from eight o’clock, at the university, I have class.

A more natural English rendering is:

Today I have class at the university starting at eight o’clock.

Because دارم is the I have form of the verb داشتن = to have.

So:

• کلاس دارم = I have class / I have a class

This is a very normal Persian way to express possession. It works much like English:

• کتاب دارم = I have a book
• وقت دارم = I have time
• کلاس دارم = I have class

Here it simply means I have.

That matters because learners often see دارم in sentences like:

• دارم می‌روم = I am going

In that pattern, دارم + می-verb helps make a progressive meaning. But in your sentence there is no second verb. So دارم is just the ordinary verb to have.

از means from, and here it marks the starting time.

So:

• از ساعت هشت = from eight o’clock / starting at eight

This suggests the class begins at eight and continues after that.

If you said just ساعت هشت, that would more simply mean at eight o’clock.

There is a small difference in nuance:

• ساعت هشت کلاس دارم = I have class at eight o’clock
• از ساعت هشت کلاس دارم = I have class starting from eight o’clock

So از adds the idea of a starting point. In many situations, both are possible, but از ساعت هشت emphasizes that the class begins then.

In Persian, clock times are very commonly expressed with ساعت:

• ساعت هشت = eight o’clock
• ساعت دو = two o’clock

It is the normal, clear way to state a time.

In casual speech, people may sometimes shorten things when the context is obvious, but for learners, ساعت هشت is the standard pattern to know.

Persian usually puts the verb at the end of the sentence, and time/place information often comes before it.

So the structure here is roughly:

• امروز = time
• از ساعت هشت = starting time
• در دانشگاه = place
• کلاس = thing possessed
• دارم = verb

That is why the sentence ends with دارم.

English prefers:

Today I have class at the university from eight o’clock.

Persian prefers something more like:

Today from eight o’clock at the university class I have.

Yes, Persian word order is somewhat flexible, especially for time and place phrases, but some orders sound more natural than others.

For example, these are all possible:

• امروز از ساعت هشت در دانشگاه کلاس دارم
• امروز در دانشگاه از ساعت هشت کلاس دارم
• در دانشگاه امروز از ساعت هشت کلاس دارم

The most important thing is that the main verb often stays at or near the end.

So learners should think:

• time and place can move around a bit
• the verb usually stays last

Because کلاس here is not a specific direct object in the sense that normally takes را.

Also, کلاس دارم is a possession expression, not the kind of sentence where را is usually needed.

Compare:

• کتاب دارم = I have a book
• کلاس دارم = I have class

You would not normally say:

• کلاس را دارم for this meaning

That would sound unnatural in this context.

It often works like English I have class, which can sound general even though the noun is singular.

So کلاس دارم can mean:

• I have a class
• I have class

If you want to be more specific, Persian can do that too:

• یک کلاس دارم = I have one class / a class
• دو کلاس دارم = I have two classes

But in everyday speech, کلاس دارم is a very natural general expression.

By itself, هشت does not tell you AM or PM. Context does.

In this sentence, because it says today and at the university, many people would naturally assume morning, but that is not built into the word itself.

If you want to be explicit, you can say:

• هشت صبح = 8 in the morning / 8 AM
• هشت شب = 8 at night / 8 PM
• هشت عصر = 8 in the evening

It is the standard and clear way.

• در دانشگاه = at the university / in the university

In everyday spoken Persian, people sometimes omit در with common place words, especially in casual conversation. So you may hear:

• امروز از ساعت هشت دانشگاه کلاس دارم

But for learners, در دانشگاه is a very good, standard version to use.

Yes. امروز is flexible and can move for emphasis.

For example:

• امروز از ساعت هشت در دانشگاه کلاس دارم
• از ساعت هشت امروز در دانشگاه کلاس دارم
• در دانشگاه امروز از ساعت هشت کلاس دارم

The first one is very natural and neutral. As a learner, it is a good default pattern to follow:

time + place + object + verb

So this sentence is an excellent model of normal Persian sentence structure.