Temporal Connectors in Indonesian

In Brief

Indonesian uses connectors such as ketika/waktu “when,” sebelum “before,” setelah/sesudah “after,” sambil/sementara “while,” begitu “as soon as,” and sejak “since” to place events in relation to one another. The time part can usually come first or second: Setelah makan, kami pergi and Kami pergi setelah makan both mean “After eating, we left.” Because Indonesian verbs do not change for tense, words such as sudah, sedang, and akan often supply details that English expresses through verb forms.

Overview

Temporal connectors join actions or situations by showing when they happen. They let you move from separate statements—Saya makan. Saya pergi. “I ate. I left.”—to a connected sequence: Setelah makan, saya pergi. “After eating, I left.” They can show an earlier or later event, simultaneous actions, an immediate result, or a starting point that continues into another period.

This is an A2 topic, building on basic time expressions. It is especially useful in Indonesian because a verb does not conjugate (change form) to mark past, present, or future. Datang remains datang in “come,” “came,” and “will come.” The connector establishes the relationship between events, while context or markers such as sudah “already,” sedang “in progress,” and akan “will” clarify the timeline.

English speakers can often begin with a direct meaning match, but not every match is exact. English “while” may require sambil, sementara, or selama, depending on whether one person performs two actions, two situations overlap, or a duration is meant. English tense forms also carry information that Indonesian may express explicitly with a time marker—or simply leave to context.

How It Works

Two clauses, either order

A clause is a part of a sentence that expresses an action or situation. A temporal connector introduces the clause that locates another event in time.

Order	Pattern	Example
Time clause first	connector + time event, main event	Ketika saya datang, dia sudah pergi.
Main clause first	main event + connector + time event	Dia sudah pergi ketika saya datang.

The basic meaning normally stays the same when the clauses switch places. When the time clause comes first, place a comma after it in careful writing. A final time clause normally needs no comma.

A connector may be followed by a complete clause with an explicit subject:

• sebelum saya berangkat — “before I leave”
• setelah rapat selesai — “after the meeting ends”

It may also be followed by a shorter verb phrase when the subject is understood:

• Sebelum berangkat, saya sarapan. — “Before leaving, I eat breakfast.”
• Setelah mandi, Rina berpakaian. — “After showering, Rina gets dressed.”

In these shorter patterns, readers normally understand the omitted subject to be the subject of the main clause. State both subjects if different people are involved.

The core connectors

Connector	Main meaning	Typical job
ketika	when	places one event at the time of another; neutral and common in careful language
waktu	when, at the time when	conversational alternative, especially for memories and life periods
sebelum	before	marks the event or time that follows a prior action
setelah / sesudah	after	marks the event or time that follows an earlier action
sambil	while doing	one participant performs two actions at once
sementara	while, meanwhile	two simultaneous situations, often with different subjects
begitu	as soon as	one event follows immediately after another
sejak	since	gives a starting point extending forward in time

Ketika and waktu: “when”

Ketika is a broadly useful choice in narration, writing, and neutral speech:

• Ketika saya datang, dia sudah pergi. — “When I arrived, he/she had already left.”
• Lampu mati ketika kami sedang makan. — “The lights went out while we were eating.”

Waktu is also the noun “time,” but in everyday language it frequently introduces a time clause. It sounds particularly natural when talking about a period in someone’s life:

• Waktu saya kecil, kami tinggal di Surabaya. — “When I was little, we lived in Surabaya.”

For a simple A2 sentence, either ketika or waktu often works. Saat is another common “when/at the moment when,” especially in compact written phrases such as saat tiba “upon arrival.”

Sebelum: “before”

Sebelum can introduce an action, a complete clause, or a point in time:

• sebelum tidur — “before sleeping / before bed”
• sebelum kamu datang — “before you came/come”
• sebelum pukul delapan — “before eight o’clock”

The event after sebelum is the later reference point. In Saya makan sebelum pergi, eating happens first and leaving happens second. English speakers sometimes reverse this relationship when planning a sentence, so first identify which event is the reference point after “before.”

Setelah and sesudah: “after”

Setelah and sesudah have the same basic function. Both can be followed by an action, clause, or noun phrase:

• setelah makan — “after eating”
• sesudah mereka pulang — “after they went home”
• setelah rapat — “after the meeting”

Setelah is a safe general-purpose choice and is frequent in both speech and writing. Sesudah is also standard. Their shorter bases, telah and sudah, have other functions: do not assume that removing se- leaves another word for “after.”

Sambil and sementara: two kinds of “while”

Use sambil when the same person or group carries out two actions together. The second action is often lighter or secondary:

• Saya minum kopi sambil membaca berita. — “I drink coffee while reading the news.”
• Mereka mengobrol sambil berjalan. — “They chatted while walking.”

The shared participant is normally not repeated after sambil. A sentence such as Saya memasak sambil dia mencuci piring sounds mismatched because the subjects differ.

Use sementara when two situations overlap, especially when they have different subjects:

• Saya memasak sementara dia mencuci piring. — “I cooked while he/she washed the dishes.”
• Anak-anak bermain, sementara orang tua mereka berbicara. — “The children played while their parents talked.”

Sementara can also mean “temporary” or “for the time being,” so its exact role comes from sentence structure and context.

Begitu: “as soon as”

At the start of a time clause, begitu can mean “as soon as”:

• Begitu sampai di rumah, saya langsung mandi. — “As soon as I got home, I took a shower.”
• Telepon saya begitu kamu tiba. — “Call me as soon as you arrive.”

It often appears with langsung “immediately,” which reinforces the quick sequence. Begitu has other meanings, including “like that” and “so,” but the temporal meaning is clear when one event immediately triggers or precedes another.

Sejak: a starting point

Sejak marks the point from which a situation begins. The endpoint may be the present or another point supplied by context:

• Saya tinggal di sini sejak 2020. — “I have lived here since 2020.”
• Sejak dia pindah, kami jarang bertemu. — “Since he/she moved, we have rarely met.”

Notice the English tense difference. English normally uses “have lived” for a situation continuing to the present, but Indonesian needs no equivalent verb conjugation. Sejak + starting point supplies the timeline, and words such as masih “still” can make continuation explicit.

Do not use sejak for the total length of time. Use selama “for/during” for duration:

• sejak hari Senin — “since Monday”
• selama tiga hari — “for three days”

Adding time and aspect markers

An aspect marker is a word that shows whether an event is complete, ongoing, expected, or still continuing. It does not change the verb itself.

Marker	Contribution	Example
sudah	completed/already	Ketika saya tiba, mereka sudah makan.
sedang	in progress	Dia menelepon ketika saya sedang bekerja.
akan	expected/future	Sebelum pergi, saya akan menelepon.
masih	still continuing	Sejak pagi, dia masih tidur.
langsung	immediate next action	Begitu tiba, kami langsung masuk.

These markers are not always required. If kemarin or the surrounding story already establishes the past, the bare verb can be enough.

Examples in Context

Indonesian	English	Note
Ketika saya datang, dia sudah pergi.	When I arrived, he/she had already left.	Sudah shows the departure was complete.
Waktu saya kuliah, saya tinggal bersama teman.	When I was at university, I lived with friends.	Waktu introduces a past life period.
Saya sedang mandi ketika telepon berbunyi.	I was showering when the phone rang.	An ongoing event is interrupted.
Sebelum tidur, saya baca buku.	Before sleeping, I read a book.	The understood subject of both actions is saya.
Tolong matikan lampu sebelum kamu keluar.	Please turn off the light before you leave.	The subject is stated in the time clause.
Setelah makan, kami pergi.	After eating, we left.	A simple sequence of two actions.
Kami minum kopi sesudah rapat.	We drank coffee after the meeting.	Sesudah is followed by a noun.
Sambil menunggu, saya minum kopi.	While waiting, I drank coffee.	One person performs both actions.
Dia belajar sambil mendengarkan musik.	He/she studies while listening to music.	The second simultaneous action follows sambil.
Saya menyiapkan makan malam sementara Dito mencuci piring.	I prepared dinner while Dito washed the dishes.	Different subjects favor sementara.
Begitu kereta tiba, para penumpang langsung naik.	As soon as the train arrived, the passengers boarded immediately.	Begitu ... langsung ... highlights immediacy.
Kirim pesan begitu kamu sampai.	Send a message as soon as you arrive.	The time clause comes second.
Saya mengenalnya sejak kami masih sekolah.	I have known him/her since we were still at school.	Sejak introduces a starting situation.
Toko itu tutup sejak bulan lalu.	That shop has been closed since last month.	A starting point continuing to the present.
Kami menunggu selama dua jam.	We waited for two hours.	Duration takes selama, not sejak.

Common Mistakes

Using sambil with two different subjects

• Wrong: Saya memasak sambil dia mencuci piring.
• Right: Saya memasak sementara dia mencuci piring.
• Why: Sambil normally links two actions by the same participant. With saya and dia, use sementara to show overlapping situations.

Confusing a starting point with a duration

• Wrong: Saya tinggal di Bali sejak tiga tahun.
• Right: Saya tinggal di Bali selama tiga tahun.
• Also right: Saya tinggal di Bali sejak 2023.
• Why: Sejak answers “since when?”; selama answers “for how long?” If the three-year period continues now, Indonesian may also say sudah tiga tahun “for three years now.”

Copying English tense forms too literally

• Awkward idea: trying to create a special Indonesian equivalent of English “had left” by changing pergi.
• Right: Ketika saya datang, dia sudah pergi.
• Why: Indonesian verbs do not conjugate for tense. Here, sudah and the order of events express what English packages into “had left.”

Leaving the subject unclear

• Unclear: Sebelum pergi, Rina menelepon Budi.
• Clear if Budi left: Sebelum Budi pergi, Rina meneleponnya.
• Why: In the short form, readers naturally assume that Rina both leaves and calls. Name the subject inside the time clause when someone else performs that action.

Treating every English “while” as sementara

• Less natural: Saya makan sementara menonton TV.
• Natural: Saya makan sambil menonton TV.
• Why: One person is doing two actions. Reserve sementara mainly for two parallel situations or for an explicit contrast.

Using sejak for a finished “from ... to ...” period

• Incomplete: Saya bekerja di sana sejak 2019 sampai 2021.
• Better: Saya bekerja di sana dari 2019 sampai 2021.
• Why: A closed range is most clearly expressed with dari ... sampai ... “from ... until ...”. Sejak naturally presents a starting point viewed forward.

Usage Notes

Formal and conversational choices

Ketika is neutral and common in edited prose, narration, and careful speech. Waktu is very natural in conversation, particularly for personal memories: Waktu saya kecil ... “When I was little ...”. Saat is frequent in both journalism and everyday set phrases, such as saat ini “at present” and pada saat itu “at that time.” At A2, ketika is the safest all-purpose connector, but recognizing all three will make authentic Indonesian easier to follow.

Setelah and sesudah are both standard. Speakers may prefer one over the other by habit or context, but beginners generally do not need to attach a strong meaning difference to them.

In informal speech, verb prefixes may be reduced according to conversational style: sambil baca instead of formal sambil membaca. Learn the full standard forms for writing, while expecting shorter forms in conversation.

Punctuation and spoken pauses

A time clause placed first is normally followed by a comma in writing: Setelah kelas selesai, kami pergi makan. In speech, a brief pause often serves the same purpose. When the time clause follows the main clause, a comma is usually unnecessary: Kami pergi makan setelah kelas selesai.

Avoiding unnecessary markers

Indonesian can use several timeline words together, but every word should contribute something. Ketika saya tiba kemarin, mereka sudah pulang is useful because kemarin locates the story in the past and sudah marks the earlier completed action. If context already makes everything obvious, a simpler sentence may sound more natural.

Beyond the Basics: More Precise Time Relationships

You do not need to master these distinctions at A2, but you will meet them in stories, news, and formal writing.

Selama, sedangkan, and sementara

Selama focuses on duration or the whole span during which something happens:

• Selama tinggal di Jakarta, saya belajar banyak. — “While living in Jakarta, I learned a lot.”
• Kami berbicara selama satu jam. — “We talked for an hour.”

Sementara presents simultaneous situations and can suggest a contrast. Sedangkan strongly highlights contrast between parallel facts and is often closer to “whereas” than temporal “while”:

• Rina suka teh, sedangkan Dodi lebih suka kopi. — “Rina likes tea, whereas Dodi prefers coffee.”

Endpoints with sampai and hingga

Sampai and the somewhat more formal hingga mark an endpoint, “until/up to”:

• Tunggu sampai saya kembali. — “Wait until I return.”
• Acara berlangsung hingga malam. — “The event continued until night.”

They pair naturally with sejak or dari when both endpoints matter: dari pagi sampai malam “from morning until night.”

Emphasizing the next event

Indonesian can make sequencing more vivid with baru “only then” or langsung “immediately”:

• Setelah semua selesai, baru kami pulang. — “Only after everything was finished did we go home.”
• Begitu mendengar berita itu, dia langsung menelepon. — “As soon as he/she heard the news, he/she called immediately.”

The pattern setelah ..., baru ... emphasizes that the main event did not happen until the first condition or event was complete. The pattern begitu ..., langsung ... emphasizes speed.

Semenjak and sejak

Semenjak is a standard variant of sejak with the same core meaning “since.” Sejak is shorter and an excellent default. In literary or emphatic contexts, you may also encounter semenjak itu “ever since then.”

Connectors in longer narratives

Temporal connectors relate events inside a sentence. Longer stories also use sequencing adverbs such as pertama “first,” kemudian “then,” lalu “then,” and akhirnya “finally.” Combining both kinds creates a clear narrative:

Pertama, kami sarapan. Setelah semua siap, kami berangkat. Ketika sampai di pantai, anak-anak langsung berlari ke air. Akhirnya, kami pulang sebelum matahari terbenam.

“First, we had breakfast. After everything was ready, we left. When we reached the beach, the children immediately ran to the water. Finally, we went home before sunset.”

Practice Tips

1. Build timeline pairs. Write two simple events, then connect them in both orders: Setelah saya makan, saya bekerja and Saya bekerja setelah saya makan. Check that the real-world sequence stays the same.
2. Sort examples by relationship. Make five columns labeled “when,” “before/after,” “same time,” “immediate,” and “starting point.” Put sentences with ketika, sebelum, sambil, begitu, and sejak into the appropriate column.
3. Retell one routine or memory. Describe your morning with sebelum, setelah, and sambil, then describe a childhood memory with waktu. Add sudah, sedang, or langsung only where it makes the timeline clearer.

Related Concepts

• Prerequisite: Time Expressions — use sudah, sedang, akan, and other time markers to clarify when events occur.
• Next step: Narrating Events — combine temporal clauses with pertama, kemudian, lalu, and akhirnya to structure a complete story.