Contents

# WEEKNUM

WEEKNUM는 내부 날짜 값에 대한 해당 연도의 주 번호를 계산합니다.

ISO 8601 표준은 월요일을 한 주의 시작으로 정해 놓았습니다. 새해가 한 주의 중간에서 시작할 경우 그 주가 어떤 해의 주로 간주될 지는, 7일 중에서 어떤 해에 속하는 날짜가 더 많은지에 따라 결정됩니다. 이 기준에 따르면, 한 해의 첫 주는 그 해의 1월 4일이 속하는 주가 됩니다.

This function is available since LibreOffice 5.1.

This function is part of the Open Document Format for Office Applications (OpenDocument) standard Version 1.2. (ISO/IEC 26300:2-2015)

### 구문

ISOWEEKNUM(Number)

숫자는 날짜의 내부 값입니다.

When entering dates as part of formulas, slashes or dashes used as date separators are interpreted as arithmetic operators. Therefore, dates entered in this format are not recognized as dates and result in erroneous calculations. To keep dates from being interpreted as parts of formulas use the DATE function, for example, DATE(1954;7;20), or place the date in quotation marks and use the ISO 8601 notation, for example, "1954-07-20". Avoid using locale dependent date formats such as "07/20/54", the calculation may produce errors if the document is loaded under different locale settings.

Unambiguous conversion is possible for ISO 8601 dates and times in their extended formats with separators. If a #VALUE! error occurs, then unselect Generate #VALUE! error in LibreOffice - Preferences Tools - Options - LibreOffice Calc - Formula, button Details... in section "Detailed Calculation Settings", Conversion from text to number list box.

### 예

=ISOWEEKNUM(DATE(1995;1;1)) returns 52. Week 1 starts on Monday, 1995-01-02.

=ISOWEEKNUM(DATE(1999;1;1)) returns 53. Week 1 starts on Monday, 1999-01-04.

관련 주제

ISOWEEKNUM wiki page.

Date & Time Functions

DATE

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DATEVALUE

DAY

DAYS

DAYS360

DAYSINMONTH

DAYSINYEAR

EASTERSUNDAY

EDATE

EOMONTH

HOUR

ISLEAPYEAR

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MINUTE

MONTH

MONTHS

NETWORKDAYS

NETWORKDAYS.INTL

NOW

SECOND

TIME

TIMEVALUE

TODAY

WEEKDAY

WEEKNUM

WEEKNUM_ADD

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WEEKS

WEEKSINYEAR

WORKDAY

WORKDAY.INTL

YEAR

YEARFRAC

YEARS

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