Koreans use it when they arrive after the expected time and want to apologize politely.
Yes. "늦었어요 (neujeosseoyo)" is polite and natural. You can also say "늦었어 (neujeosseo)" casually.
You can say "I'm late" — 늦었습니다 (neujeosseumnida).
늦었어요 means "I'm late." Polite apology for being late.
1. Meeting friends
2. Work
3. Appointment
I'm late. Sorry. (Polite)
I'm late. You waited, right? (Formal)
I'm late. Sorry. (Casual)
I'm a little late because of traffic.
• 지각했어요 - I'm late (work/school)
• 늦어서 죄송해요 - Sorry for being late