Mana mungkin kami sampai tepat waktu kalau pesawat baru mendarat setelah pukul sebelas malam?

Literally, mana means which/where, and mungkin means possible. But together, mana mungkin is an idiomatic expression.

In this sentence, mana mungkin means something like:

• How could that be possible?
• No way
• How on earth could we... ?

So it is not really asking for a place. It is a rhetorical way to say that something is basically impossible.

In context, Mana mungkin kami sampai tepat waktu... means:

• How could we possibly arrive on time...?
• There’s no way we could arrive on time...

This is a very common learner question because Indonesian has two words for we:

• kami = we, excluding the person being spoken to
• kita = we, including the person being spoken to

So kami here means the speaker is talking about their group, but not including the listener.

Example:

• Kami akan terlambat. = We’ll be late.
  The listener is not part of that we.
• Kita akan terlambat. = We’ll be late.
  The listener is included.

In this sentence, kami suggests that the speaker and their group are the ones traveling.

Sampai can mean different things depending on context. Two very common meanings are:

• to arrive / reach
• until

Here, in kami sampai tepat waktu, it means arrive.

So:

• kami sampai = we arrive
• kami sampai tepat waktu = we arrive on time

Why doesn’t it mean until here? Because the structure shows it is being used as a verb. The subject kami comes before it, so sampai is acting like arrive/reach.

Compare:

• Kami sampai jam sepuluh. = We arrived at ten.
• Kami menunggu sampai jam sepuluh. = We waited until ten.

Same word, different function.

In Indonesian, sampai can directly express arrive without needing a separate preposition like English often does.

So:

• sampai tepat waktu = arrive on time

Breaking it down:

• sampai = arrive
• tepat waktu = on time / exactly on time

Tepat waktu is a fixed expression meaning punctual or on time.

Examples:

• Dia datang tepat waktu. = He came on time.
• Kereta berangkat tepat waktu. = The train left on time.

So sampai tepat waktu is perfectly natural Indonesian.

Yes. In this sentence, kalau means if.

The clause:

• kalau pesawat baru mendarat setelah pukul sebelas malam means
• if the plane only lands after eleven at night

Kalau is very common in everyday Indonesian and is often a bit more conversational than jika.

Compare:

• Kalau hujan, kami di rumah. = If it rains, we stay home.
• Jika hujan, kami di rumah. = same meaning, but a little more formal/written

In your sentence, kalau sounds very natural.

Baru is one of those Indonesian words with more than one common meaning.

It can mean:

1. new

   • mobil baru = new car

2. just / only just / not until, especially with time

   • Saya baru makan. = I just ate.
   • Pesawat baru mendarat setelah pukul sebelas malam. = The plane only lands after eleven at night / The plane doesn’t land until after eleven at night

In this sentence, baru does not mean new. It adds the idea that the landing happens late, only then, or not until that time.

This is why the sentence feels like:
How could we possibly be on time if the plane doesn’t even land until after 11 p.m.?

Both can relate to arrival, but they are not exactly the same.

• mendarat = to land
  Specifically used for aircraft.
• tiba = to arrive

So:

• pesawat mendarat = the plane lands
• pesawat tiba = the plane arrives

In this sentence, mendarat is more precise because we are talking about a plane. It emphasizes the actual landing time.

Examples:

• Pesawat itu mendarat pukul 9. = The plane landed at 9.
• Kami tiba di hotel pukul 10. = We arrived at the hotel at 10.

You could say pesawat tiba, but mendarat is more specific and natural here.

It means after eleven at night or after 11 p.m.

Breaking it down:

• setelah = after
• pukul = o’clock / a time marker used before clock times
• sebelas = eleven
• malam = night / p.m. in this context

So:

• setelah pukul sebelas malam = after eleven o’clock at night

A very natural English translation would be:

• after 11 p.m.
• after eleven at night

Pukul is a time marker used before clock times. It is similar to saying at ... o’clock.

So:

• pukul sebelas = at eleven o’clock

In formal or careful Indonesian, pukul is very common. In casual speech, people often drop it if the meaning is obvious.

Compare:

• Pesawat mendarat pukul sebelas. = more explicit
• Pesawat mendarat jam sebelas. = also very common
• Pesawat mendarat sebelas malam. = possible in speech if the context is clear

So no, you do not always need pukul, but it is completely correct and natural.

Indonesian commonly expresses parts of the day with words like:

• pagi = morning
• siang = midday/daytime
• sore = late afternoon
• malam = night

So pukul sebelas malam is a normal way to say 11 p.m.

Other examples:

• pukul tujuh pagi = 7 a.m.
• pukul satu siang = 1 p.m.
• pukul enam sore = 6 p.m.
• pukul sebelas malam = 11 p.m.

In writing, you might also see 23.00, but the sentence you gave uses ordinary spoken-style wording.

Indonesian allows flexibility in clause order, just like English.

Your sentence is:

• Mana mungkin kami sampai tepat waktu kalau pesawat baru mendarat setelah pukul sebelas malam?

This puts the main emotional reaction first:

• How could we possibly arrive on time...

Then it gives the reason:

• if the plane only lands after 11 p.m.?

This order sounds very natural because the speaker is expressing disbelief first.

You could also rearrange it:

• Kalau pesawat baru mendarat setelah pukul sebelas malam, mana mungkin kami sampai tepat waktu?

That version is also correct, but it feels a bit more structured or explanatory. The original sounds more spontaneous and conversational.

Grammatically, it is in question form, but functionally it is a rhetorical question.

The speaker is not really asking for an answer. They are saying:

• It’s impossible for us to arrive on time
• There’s no way we can make it on time

Using Mana mungkin ... ? makes the sentence sound stronger and more expressive than a plain statement.

Compare:

• Kami tidak mungkin sampai tepat waktu. = It’s impossible for us to arrive on time.
• Mana mungkin kami sampai tepat waktu...? = How could we possibly arrive on time...?

The second one sounds more emotional, frustrated, or emphatic.

Yes. Setelah and sesudah can both mean after.

So these are both possible:

• setelah pukul sebelas malam
• sesudah pukul sebelas malam

In many contexts, setelah is a bit more common in everyday use, but both are correct.

So the sentence could be:

• Mana mungkin kami sampai tepat waktu kalau pesawat baru mendarat sesudah pukul sebelas malam?

That would still be natural Indonesian.

It is mostly neutral, natural Indonesian.

Some parts feel very everyday and conversational:

• mana mungkin
• kalau

But nothing in it is slangy or incorrect. It would work well in normal speech and also in informal writing.

If you wanted a more formal version, you might say something like:

• Bagaimana mungkin kami dapat tiba tepat waktu jika pesawat baru mendarat setelah pukul sebelas malam?

That sounds more formal because of:

• bagaimana mungkin instead of mana mungkin
• jika instead of kalau
• dapat tiba instead of sampai

But your original sentence is very natural and probably closer to what many people would actually say.