Ma is sok a túlóra.

No. In this sentence, is means also / too / as well.

So Ma is means today too or today as well.

This is is a particle, not the English-style verb is. Hungarian also has a verb van for to be, but that is a different word.

A useful rule:

• X is = X too / X also

Examples:

• én is = me too
• itt is = here too
• ma is = today too

Because Hungarian often leaves out the verb van in the present tense, third person when the sentence is of the type something is something / something is adjective-like.

So:

• A túlóra sok.
• Sok a túlóra.

can both work without an expressed van.

This is normal Hungarian grammar. English needs is, but Hungarian often does not in this kind of sentence.

However, in an existential sentence, Hungarian often does use van:

• Ma is sok túlóra van. = There is a lot of overtime today too.

So the sentence you were given uses a very common Hungarian pattern where the copula is omitted.

a is the definite article, meaning the.

Hungarian uses the definite article in places where English often would not. Here a túlóra does not necessarily mean one specific overtime shift. It can refer more generally to the overtime, meaning the amount of overtime or overtime as the thing being discussed.

So even if English would simply say There is a lot of overtime, Hungarian may say Sok a túlóra.

Because Hungarian word order is strongly connected to information structure: what is the topic, and what is the new or important information.

In Sok a túlóra, the important statement is sok: the overtime is a lot. This is a very natural way to present the idea.

• Sok a túlóra = neutral, natural, common
• A túlóra sok = possible, but more marked; it can sound contrastive, as if you are emphasizing the overtime specifically

So for a learner, Sok a túlóra is the safer and more natural pattern to remember.

In this sentence, the best natural English equivalent is a lot.

sok can correspond to:

• many
• much
• a lot of
• sometimes simply a lot

With túlóra, English usually treats overtime as an uncountable idea, so a lot of overtime is the most natural translation.

In this sentence structure, sok is functioning as the main description of a túlóra:

• The overtime is a lot
• more naturally: There is a lot of overtime

Yes, absolutely.

Ma is sok túlóra van is a very natural Hungarian sentence and may be easier for beginners to understand because it has van.

The two versions are close in meaning:

• Ma is sok a túlóra.
• Ma is sok túlóra van.

A rough difference:

• sok a túlóra = more like commenting on the amount of overtime
• sok túlóra van = more like stating that a large amount exists

In many real situations, both would be translated the same way.

Because time expressions very often come near the beginning of a Hungarian sentence, especially when they set the scene.

So Ma is naturally means:

• today too
• as for today, too

Starting with ma makes it clear right away that the sentence is about today.

This is very common in Hungarian:

• Ma meleg van. = It is warm today.
• Ma is dolgozom. = I am working today too.

In Hungarian, is usually comes directly after the word it modifies.

So:

• Ma is = today too
• Péter is = Péter too
• itt is = here too

That is why Ma is sok a túlóra specifically means Today too, there is a lot of overtime.

If is were attached to a different word, the emphasis would change. Hungarian uses placement very systematically that way.

It is basically neutral and perfectly normal Hungarian.

It does not sound especially formal or especially slangy. It is the kind of sentence you could hear in everyday conversation, especially in a work-related context.

A learner should recognize it as a standard, useful pattern:

• Sok a munka. = There is a lot of work.
• Kevés az idő. = There is little time.
• Drága a benzin. = Gasoline is expensive.

So Sok a túlóra fits a very common Hungarian sentence type.