* 날짜 PICTURE 참고 : https://support.sas.com/resources/papers/proceedings15/1334-2015.pdf
PROC FORMAT;
PICTURE DTTEST
LOW-HIGH = '%0Y년%0m월%0D일 %0H시%0M분%0S초' (DATATYPE=DATETIME);
RUN;
DATA START_TIME;
FORMAT DATE DTTEST27.;
DATE = datetime();
PUT DATE=;
RUN;