Dziś pracuję do szóstej.

Yes. Dziś means today, and it is basically the shorter form of dzisiaj.

Both are very common:

• Dziś pracuję do szóstej.
• Dzisiaj pracuję do szóstej.

They mean the same thing. Dziś can sound a little shorter or slightly more compact in everyday speech, but there is no big difference in meaning.

Pracuję is the 1st person singular form of the verb pracować (to work), so it means I work / I am working.

Here are a few forms:

• pracuję = I work / am working
• pracujesz = you work / are working
• pracuje = he/she/it works
• pracować = to work (the infinitive)

So in Dziś pracuję do szóstej, the speaker is talking about themselves: I’m working today until six.

Because Polish usually does not use a separate verb corresponding to English am in this kind of sentence.

In English, you say:

• I am working

In Polish, the verb form itself already tells you the person:

• pracuję = I work / I am working

So pracuję already includes the idea of I. That is why ja is often omitted unless you want emphasis:

• Dziś pracuję do szóstej. = normal
• Ja dziś pracuję do szóstej. = more emphatic, like I’m the one working until six today

Here do means until / up to in the sense of a time limit.

So:

• do szóstej = until six

This is a very common Polish pattern:

• do piątej = until five
• do ósmej = until eight
• do rana = until morning

Be careful: Polish do does not always translate as English to. Its meaning depends on context. In this sentence, it means until.

Because after do, Polish normally uses the genitive case, and szóstej is the genitive form of szósta.

The basic form is:

• szósta = sixth / six o’clock

But after do:

• do szóstej = until six

This is really short for:

• do szóstej godziny = until the sixth hour

Even though godziny is usually not said, the adjective/number still changes case as if that full phrase were there.

Yes, literally it is something like until the sixth, but in Polish time expressions, that is understood as until six o’clock.

Polish often leaves out godzina/godziny when telling time:

• Jest szósta. = It’s six o’clock.
• do szóstej = until six o’clock
• o szóstej = at six o’clock

So learners should think of szósta / szóstej in time expressions as referring to the sixth hour.

A helpful approximation is:

• sz sounds like English sh
• ó sounds like u in Polish
• stej is roughly like stay but with a shorter, Polish-style vowel

So szóstej sounds approximately like SHOOS-tay.

A few pronunciation notes:

• sz = sh
• ó = u
• the stress is usually on the second-to-last syllable, so: SZÓS-tej

A rough guide:

• dziś sounds approximately like jeesh or jish, but softer than normal English j
• pracuję sounds roughly like pra-TSU-yeh

More detailed breakdown:

dziś

• dz is a voiced sound somewhat like English j
• i softens the consonant before ś
• ś is a soft sh-like sound

pracuję

• pra = pra
• c = ts
• uj often sounds like uy / oo-y
• ę at the end is often pronounced approximately like e or a nasalized e, depending on speech style

So in normal speech, pracuję is often heard close to pra-TSU-ye.

Yes. Polish present tense often covers both:

• a general present meaning: I work
• a current or temporary meaning: I am working

Because of dziś (today), the sentence most naturally means:

• Today I’m working until six or
• I’m working until six today

English chooses between I work and I’m working more strictly than Polish does.

Because Polish usually does not need one in this kind of sentence.

English often says:

• until six
• until six o’clock

Polish usually just says:

• do szóstej

If needed, you can make it more explicit:

• do szóstej godziny

But that is less natural in everyday conversation. Normally, do szóstej is enough.

Yes. Polish word order is more flexible than English word order, although some versions sound more natural than others.

All of these are possible:

• Dziś pracuję do szóstej.
• Pracuję dziś do szóstej.
• Do szóstej dziś pracuję. — possible, but more marked or emphatic

The most neutral version is:

• Dziś pracuję do szóstej.

Word order in Polish often changes emphasis rather than the basic meaning.

They mean different things:

• do szóstej = until six
• o szóstej = at six

Examples:

• Dziś pracuję do szóstej. = Today I’m working until six.
• Dziś zaczynam pracę o szóstej. = Today I start work at six.

This is an important contrast:

• do = up to a time limit
• o = at a specific time

Yes, absolutely. Dziś pracuję do szóstej is a natural, everyday sentence.

A speaker might use it when:

• explaining their schedule
• saying when they finish work
• answering why they are busy today

Very common variations include:

• Dzisiaj pracuję do szóstej.
• Pracuję dziś do szóstej.
• Dziś jestem w pracy do szóstej. = Today I’m at work until six.

So the sentence is normal and useful to remember.