Když půjdeme o něco dřív, budeme v kanceláři včas.

Here když means something like if / when in a real future situation.

In Czech, když often introduces a condition that is seen as realistic:

• Když půjdeme o něco dřív, budeme v kanceláři včas.

This is very natural Czech, even though in English we usually translate it with if:

• If we go a bit earlier, we’ll be in the office on time.

So když can mean:

• when in time clauses
• if in many everyday conditional sentences

A learner should not expect a strict one-to-one match with English.

Půjdeme is the 1st person plural future form of jít (to go on foot).

So:

• já půjdu = I will go
• ty půjdeš = you will go
• my půjdeme = we will go

The verb jít is irregular, so its future forms need to be learned separately.

In this sentence:

• půjdeme = we will go / we go

Because it comes after když, English often uses present tense in translation (If we go earlier), but Czech still uses this future form naturally.

Budeme v kanceláři literally means we will be in the office.

This focuses on the result/state:

• we will already be there
• we will be there on time

If you said:

• Když půjdeme o něco dřív, přijdeme do kanceláře včas.

that would mean:

• If we leave/go a bit earlier, we’ll arrive at the office on time.

That is also correct. The original sentence simply chooses a slightly different perspective:

• budeme v kanceláři = we will be in the office
• přijdeme do kanceláře = we will come/arrive at the office

Both are natural, but the original emphasizes being there by the right time.

Because v kanceláři means in the office, while do kanceláře means to the office.

Compare:

• být v kanceláři = to be in the office
• jít do kanceláře = to go to the office

In the sentence:

• budeme v kanceláři včas

the verb is budeme (we will be), so the place is expressed as location:

• v kanceláři = in the office

Also note the case:

• kancelář = dictionary form
• v kanceláři = locative singular after v

O něco means a bit, somewhat, or by a little.

So:

• o něco dřív = a little earlier / a bit earlier

This is a very common Czech pattern:

• o něco lepší = a bit better
• o něco větší = a little bigger
• o něco později = a little later

It softens the comparison and means the change is not large.

Both dřív and dříve mean earlier.

• dřív is the more common, everyday spoken form
• dříve is slightly more formal or literary

So:

• o něco dřív = very natural in normal speech
• o něco dříve = also correct, just a bit more formal

You will hear dřív very often in conversation.

Because the sentence begins with a subordinate clause:

• Když půjdeme o něco dřív = subordinate clause
• budeme v kanceláři včas = main clause

In Czech, subordinate clauses are separated by commas. So the comma is required:

• Když půjdeme o něco dřív, budeme v kanceláři včas.

This is similar to English punctuation when a clause comes first:

• If we go a bit earlier, we’ll be in the office on time.

Včas means on time / in time / not late.

In this sentence, that is exactly the idea:

• budeme v kanceláři včas = we’ll be in the office on time

Czech learners often compare včas and načas / na čas, but včas is the standard word for on time in this context.

Examples:

• Přišel včas. = He arrived on time.
• Musíme to udělat včas. = We have to do it in time.

So here včas is the natural choice.

Yes, this is a real, likely condition in the future, not a hypothetical one.

The sentence means:

• if we do X, Y will happen

That is why Czech uses ordinary future forms:

• půjdeme
• budeme

If you used bychom, the sentence would become more hypothetical or less direct.

Compare:

• Když půjdeme o něco dřív, budeme v kanceláři včas.
  = If we go a bit earlier, we’ll be in the office on time.

• Kdybychom šli o něco dřív, byli bychom v kanceláři včas.
  = If we went a bit earlier, we would be in the office on time.

So the original sentence is about a realistic future plan, not an unreal or imagined situation.

Yes. Czech word order is flexible, although different orders can sound more neutral or give different emphasis.

The original order is very neutral:

• Když půjdeme o něco dřív, budeme v kanceláři včas.

You could also say:

• Budeme v kanceláři včas, když půjdeme o něco dřív.

That is still correct, but it sounds slightly different in emphasis because the main result comes first.

Inside the second clause, word order can also shift a bit:

• budeme včas v kanceláři

This is possible, but budeme v kanceláři včas sounds more natural in many contexts.

For learners, the original version is the best model to follow.

Strictly speaking, jít often means to go on foot. But in everyday Czech it can also be used more generally in some contexts, especially when the exact mode of transport is not important.

So in this sentence:

• Když půjdeme o něco dřív...

it can be understood as:

• If we go/leave a bit earlier...

If you wanted a more neutral verb, you might also hear:

• Když vyrazíme o něco dřív... = If we set off a bit earlier
• Když odejdeme o něco dřív... = If we leave a bit earlier

But the original sentence is completely natural and idiomatic.

Usually yes, but it depends on context.

Kancelář normally means:

• an office room
• an office/workplace
• sometimes an office as an institution

In this sentence:

• v kanceláři very naturally means in the office

So the translation we’ll be in the office on time is exactly right.

Just be aware that like English office, the exact nuance depends on context:

• the room itself
• the workplace
• a business office

Here, all of those fit the general meaning well.