find 명령의 "초기화 시간"은 무엇입니까?

find 명령에 대한 매뉴얼 페이지를 참조하려고 하면 다음과 같은 문제가 발생합니다.

-mmin n
        The value of n can be one of the following:
          n
               Evaluates as True if the file modification time subtracted from the initialization time, divided by 60 seconds (with any remainder discarded), is
               n.
          -n
               Evaluates as True if the file modification time subtracted from the initialization time, divided by 60 seconds (with any remainder discarded), is
               less than n.
          +n
               Evaluates as True if the file modification time subtracted from the initialization time, divided by 60 seconds (with any remainder discarded), is
               greater than n (in case of UNIX03, greater than n+1).
        Note: Files modified after the find command start time will not be taken into account. However, when the find command is used within the unary NOT
        operator for non-UNIX03 behavior, the files modified after the command start time will be displayed until the value of n.
   -mtime n
        The value of n can be one of the following:
          n
               Evaluates as True if the file modification time subtracted from the initialization time, divided by 86400 seconds (with any remainder discarded),
               is n. 86400 seconds is 24 hours.
          -n
               Evaluates as True if the file modification time subtracted from the initialization time, divided by 86400 seconds (with any remainder discarded),
               is less than n.
          +n
               Evaluates as True if the file modification time subtracted from the initialization time, divided by 86400 seconds (with any remainder discarded),

이 초기화 시간은 얼마입니까? 지금이 find 명령이 호출되는 시점인가요?