This is the 18568th most frequent Korean word.
시한
"시한" means "deadline" or "time limit."
Here, '시한' is used to indicate a set deadline or time limit for completing something.
이 프로젝트의 시한은 다음 주 금요일입니다.
The deadline for this project is next Friday.
In this sentence, '시한' refers to a timed mechanism, specifically related to an explosive device in this context.
그는 폭발 장치의 시한을 조정하였습니다.
He adjusted the timer of the explosive device.
Here, '시한' is used more generally to imply a defined time scope within which an action or process should occur.