Bila asks for a point or occasion in time: a clock time, a day, a date, or the event relative to which something happens. It does not ask how much time an activity occupies. That distinction between a point (bila) and an interval (berapa lama) is the key to natural Malay time questions.
Bila asks “at what time or occasion?”
A bila question can be answered by pukul lapan “at eight,” hari Isnin “Monday,” minggu depan “next week,” or selepas mesyuarat “after the meeting.” All these expressions locate the event on a timeline.
Bila kita bertolak?
When are we leaving?
Kelas itu bermula bila?
When does that class start?
Awak menerima surat itu bila?
When did you receive that letter?
In casual situations where the subject is already obvious, it can be omitted:
Bila bertolak?
When are we/you leaving? (informal; subject understood)
The Malay verb does not change to distinguish start, started, and will start. Context and time markers do that work. Thus Mesyuarat bermula bila? can refer to a scheduled future meeting, while Mesyuarat tadi bermula bila? clearly asks about an earlier event.
In-situ and fronted positions
In everyday conversation, bila often stays where the answer would go. This is Malay's usual in-situ logic:
Bas ke Kuantan sampai bila?
When does the bus to Kuantan arrive?
The answer pukul enam petang would occupy the same final slot: Bas ke Kuantan sampai pukul enam petang. Fronting bila is equally available, especially when time is the frame of the whole question.
Bila awak akan menghantar laporan itu?
When will you submit that report?
Bila keputusan temu duga akan diumumkan?
When will the interview result be announced?
Neither order is automatically more polite. Fronted bila makes the missing time prominent; final bila often sounds conversational and closely mirrors the answer slot. In official forms or formal questioning, attached -kah can create bilakah (formal).
Bilakah tempoh permohonan akan berakhir?
When will the application period end? (formal)
Write bilakah as one word because -kah is a suffix. It is not required in an ordinary conversation.
Sejak bila asks for a starting point
Sejak bila means “since when?” It asks for the beginning of a state or activity that extends to a later reference point, commonly the present. Sejak remains semantically active: an answer names the starting boundary.
Awak tinggal di sini sejak bila?
Since when have you lived here?
Sejak bila awak tinggal di sini?
Since when have you lived here? (starting point foregrounded)
Sejak bila kedai itu ditutup pada hari Ahad?
Since when has that shop been closed on Sundays?
A suitable answer is sejak tahun 2022, sejak bulan lalu, or sejak saya mula bekerja di sini. English expresses the continuing relation through a perfect construction—“have lived”—but Malay can use the unchanged predicate tinggal together with sejak.
Sampai bila asks for an endpoint
Sampai bila means “until when?” It asks where a state, permission, plan, or activity ends on the timeline. In careful formal prose, sehingga bila is also possible (formal), but sampai bila is neutral and extremely common.
Awak akan berada di Pulau Pinang sampai bila?
Until when will you be in Penang?
Sampai bila jalan ini akan ditutup?
Until when will this road be closed?
Promosi ini sah sampai bila?
Until when is this promotion valid?
An answer supplies an endpoint: sampai Jumaat, hingga hujung bulan, or sehingga kerja pembaikan selesai. It does not merely state the total length.
Berapa lama measures an interval
Berapa lama asks “how long?” and is written as two words. It requests a duration rather than a date or boundary.
Awak sudah belajar bahasa Melayu berapa lama?
How long have you studied Malay?
Berapa lama perjalanan dari Kuala Lumpur ke Ipoh?
How long is the journey from Kuala Lumpur to Ipoh?
Kita perlu menunggu berapa lama lagi?
How much longer do we need to wait?
Compare all four dimensions:
| Question | Information requested | Possible answer |
|---|---|---|
| Kursus bermula bila? | point of beginning | Pada 3 Jun. |
| Kursus itu berlangsung sejak bila? | starting boundary viewed retrospectively | Sejak 3 Jun. |
| Kursus berlangsung sampai bila? | ending boundary | Sampai 28 Jun. |
| Kursus berlangsung berapa lama? | length of interval | Selama empat minggu. |
English when and how long already differ, but learners still overextend bila because it is the first Malay time question word they learn. Malay makes the boundaries particularly transparent: sejak points back to a start, sampai points ahead to an end, and lama asks about length.
Choosing an appropriately specific question
A broad bila question is useful when any time expression would answer it. Add a unit when the expected answer should be more specific: pukul berapa for clock time, hari apa for day, or tarikh berapa for a date in common speech. Those patterns belong to the wider system of time and dates.
Penerbangan awak berlepas pukul berapa?
What time does your flight depart?
If someone answers a broad bila question too vaguely, the next question can narrow the scale: Hari apa? “What day?” or Pukul berapa? “At what time?”
Common Mistakes
1. Using bila for a duration answer
❌ Awak belajar di sini bila? — Selama enam bulan.
Mismatched — bila asks when, but selama enam bulan gives a duration.
✅ Awak belajar di sini berapa lama? — Selama enam bulan.
How long have you studied here? — For six months.
2. Using berapa lama when asking for a scheduled date
❌ Mesyuarat itu berapa lama? — Hari Selasa.
Mismatched — berapa lama asks for length, not a calendar point.
✅ Mesyuarat itu bila? — Hari Selasa.
When is the meeting? — Tuesday.
3. Joining a multiword duration expression
❌ Awak menunggu berapalama?
Incorrect spelling — berapa and lama remain separate words.
✅ Awak menunggu berapa lama?
How long have you been waiting?
4. Separating -kah in a formal question
❌ Bila kah keputusan akan diumumkan?
Incorrect — the suffix -kah attaches to bila.
✅ Bilakah keputusan akan diumumkan?
When will the result be announced? (formal)
Key Takeaways
Use bila for a temporal point or occasion, whether it remains in the answer slot or frames the question at the front. Use sejak bila for the starting boundary, sampai bila for the endpoint, and berapa lama for duration. The answer—not English tense—reveals which Malay question is needed.
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