LEARN KOREAN (한국어) [GRAMMAR] #1

KOREAN SECONDS (초)

When talking about seconds, you need to use the Sino-Korean numbers. When putting a number before "초," it doesn't matter if you use the word or the numeral. For example:

1초 - 1 second
일 초 - one second

2초 - 2 seconds
이 초 - 2 seconds

2초 동안 - for 2 seconds
이 초 동안 - for two seconds

Examples in sentences:
저는 2초 동안 달렸어요 - I ran for 2 seconds
저는 그 사람을 10초 동안 만났어요 - I met that person for 10 seconds
1분은 60초입니다 - One minute is sixty seconds