Learn Hardcore Korean: hoeuiga ohu se si yejeongiya. - The meeting is scheduled for 3 p.m.

예정 is a noun meaning “schedule/plan.”
이다 is the copula “to be.”
이야 is the casual present form of 이다 used after a noun ending in a consonant. So 예정 + (이)야 → 예정이야.
Polite equivalents: 예정이에요; very formal: 예정입니다.

Is the particle 에 after the time missing? Should it be 오후 세 시에?

With 예정, both are used:
- 회의가 오후 세 시 예정이야. (very common “N + 예정” pattern)
- 회의가 오후 세 시에 예정이야. (also acceptable)
You’ll also often hear a passive scheduling pattern with 로:
- 회의가 오후 세 시로 예정돼 있어. / 예정되어 있어요. (“set for 3 p.m.”)
If you just want to state time (not emphasize “scheduled”), use:
- 회의가 오후 세 시에 있어(요).

Why use 가 instead of 는 after 회의?

가 marks the subject and often presents new, factual info: “The meeting (as information) is scheduled…”
는 makes it a topic/contrast: 회의는 오후 세 시 예정이야 = “As for the meeting, (by the way) it’s scheduled at 3.”
Both are grammatical; choose based on nuance.

Is the word order natural? Could I say this another way?

The given sentence is natural.
Common alternatives:
- 오후 세 시에 회의가 예정이야.
- 회의는 오후 세 시야. (no “scheduled,” just “at 3”)
- Formal/official: 회의가 오후 세 시로 예정되어 있습니다.
If you mean “the 3 p.m. meeting,” you can say: 오후 세 시 회의 (as a noun phrase).

Can I drop 예정 and just say it more simply?

Yes: 회의는 오후 세 시야/예요/입니다. = “The meeting is at 3 p.m.”
예정 adds the nuance of “scheduled/plan” (used in notices, announcements, or when emphasizing it’s set).

What are the polite and formal versions I’d use at work?

Why is it 세 시 and not 삼 시?

Korean uses native numbers with the hour counter 시:
- 1–4: 한 시, 두 시, 세 시, 네 시; then 다섯 시, 여섯 시...
Sino-Korean numbers (일, 이, 삼…) are not used for hours in regular speech. For minutes/seconds you use Sino-Korean: 삼십 분, 이 초.

Why 세 instead of 셋?

Native numbers shorten before counters:
- 하나 → 한, 둘 → 두, 셋 → 세, 넷 → 네 (so 세 시, not 셋 시).

How do I write the time with digits, and what about spacing?

Is the spacing in the sentence correct?

Yes: 회의가 오후 세 시 예정이야.
- Space between 세 and 시 (with number words).
- 오후 is separate.
- With digits you’d write: 오후 3시 (no space between 3 and 시).

Pronunciation tips for this sentence?

회의 is commonly pronounced close to [회이] (the ㅢ here often sounds like [이]); 회의가 ≈ [회이가].
시 is pronounced [시] (sounds like “shi”).
예정이야 ≈ [예정이야] (no “n” sound; not “년/니야”).

What’s the difference between 예정, 계획, and 일정?

예정: something is scheduled/set for a particular time. Very common in announcements.
계획: a plan/intention (not necessarily fixed time).
일정: a schedule/itinerary (your timetable as a whole).

Can I say 회의가 예정이 있어요?

No. Say:
- 회의가 예정돼 있어요. or 회의가 오후 세 시 예정이에요.
예정이 있어요 usually means “I have plans.” e.g., 오늘 예정이 있어요 (“I have plans today”).

When should I use 로 with 예정되다?

N(으)로 예정되다 means “be set for/as N” and sounds official:
- 회의가 오후 세 시로 예정되어 있습니다.

Is 오후 the only natural label for 3 p.m.? What about 저녁?

For clock time, 오전/오후 is standard. 3 p.m. is 오후 세 시.
저녁 is a part-of-day word (“evening”) and can be used colloquially (e.g., 저녁 7시), but official/neutral time-telling uses 오전/오후.

How do I ask “What time is the meeting (scheduled)?”

Casual:
- 회의가 몇 시 예정이야?
- 회의가 몇 시로 예정돼 있어?
- Less formal of the same idea: 회의 몇 시야?
Polite:
- 회의가 몇 시 예정이에요?
- 회의가 몇 시로 예정돼 있어요?

How do I talk about changes or the past schedule?

Could I say “the 3 p.m. meeting” in Korean?