Porada začne v osm.

Porada usually means a meeting, especially a work meeting, staff meeting, briefing, or consultation. It often sounds a bit more practical or businesslike than a very general English meeting.

So it is not usually a casual social get-together. In many contexts, it suggests that people are meeting to discuss work, plans, or decisions.

Porada is in the nominative singular because it is the subject of the sentence — it is the thing that will start.

You can think of the structure as:

• Porada = the meeting
• začne = will start
• v osm = at eight

So porada stays in its basic dictionary form here.

Začne comes from the perfective verb začít, while začíná comes from the imperfective verb začínat.

In Czech:

• začít = to start, to begin, seen as a completed event
• začínat = to be starting / to start habitually or as a process

Because začít is perfective, its present-tense form is used with future meaning. So začne means will start.

Both versions can be possible in real life:

• Porada začne v osm. = The meeting will start at eight.
• Porada začíná v osm. = The meeting starts at eight.

The sentence with začne focuses a little more on the actual starting point.

Začne is:

• 3rd person singular
• from the verb začít
• formally a present-tense form
• but because the verb is perfective, it has future meaning

So it literally looks like a present form, but in meaning it is will start.

This is a very common question.

In Czech, time expressions with v often use the accusative in fixed temporal phrases, not the locative you might expect from place expressions.

So Czech says things like:

• v pátek = on Friday
• v jednu = at one
• v osm = at eight

Here, osm is the expected form in this kind of time expression.

A useful way to remember it is simply that v + time often behaves differently from v + place.

Yes. V osm is very often understood as a shortened form of v osm hodin.

Czech often leaves out hodin when the meaning is obvious.

So these are both possible:

• Porada začne v osm.
• Porada začne v osm hodin.

The shorter version is very common and natural.

Czech uses ve instead of v before some words when it is easier to pronounce, especially before difficult consonant clusters:

• ve škole
• ve středu

But osm begins with a vowel sound, so v osm is normal.

So:

• v osm = correct
• ve osm = not standard here

In speech, v osm often flows together smoothly.

Yes. Czech word order is flexible.

Both are correct:

• Porada začne v osm.
• V osm začne porada.

The difference is mainly focus:

• Porada začne v osm. = neutral statement
• V osm začne porada. = emphasizes the time at eight

English usually has less flexibility here, but Czech uses word order much more to show emphasis.

By itself, v osm just means at eight. Czech does not automatically tell you whether it is morning or evening unless the context makes it clear.

If needed, Czech can specify:

• v osm ráno = at eight in the morning
• v osm večer = at eight in the evening

So the sentence alone leaves that open.

Yes, you could, but the meaning is slightly less specific.

• Porada začne v osm. = The meeting will start at eight.
• Porada bude v osm. = The meeting will be / take place at eight.

So začne specifically talks about the starting time, while bude is more general.

If you want to say exactly when it begins, začne is the better choice.