■ 특정 주차(Week Number)의 첫번째 날짜를 구하는 방법을 보여준다.
▶ 예제 코드 (PY)
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 |
import datetime def GetWeekNumberFirstDate(year, weekNumber): yearFirstDate = datetime.datetime(year, 1, 1) currentDate = yearFirstDate + datetime.timedelta(weeks = weekNumber - 1) targetDate = currentDate - datetime.timedelta(days = currentDate.isoweekday() % 7 - 1) return targetDate if __name__ == "__main__": print(GetWeekNumberFirstDate(2019, 1)) # 2018-12-31 00:00:00 print(GetWeekNumberFirstDate(2019, 2)) # 2019-01-07 00:00:00 print(GetWeekNumberFirstDate(2019, 3)) # 2019-01-14 00:00:00 print(GetWeekNumberFirstDate(2019, 4)) # 2019-01-21 00:00:00 print(GetWeekNumberFirstDate(2019, 5)) # 2019-01-28 00:00:00 print(GetWeekNumberFirstDate(2019, 6)) # 2019-02-04 00:00:00 |