ISOWEEKNUM

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## САНА

WEEKNUM рақами ҳафтаи солро ҳисоб мекунад.

Стандарти Байналхалқии ISO 8601 эълом доштааст, ки Душанбе рӯзи аввали ҳафта мебошад. Ҳафтае, ки як қисмаш дар як сол ва қисми дигараш дар соли дигар аст, ҳафтаи соле ҳисоб меёбад, ки шумораи бештари рӯзҳояш дар он сол аст th.

### Syntax

ISOWEEKNUM(Number)

Number рақами дохилии сана.

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 - PreferencesTools - Options - LibreOffice Calc - Formula, button Details... in section "Detailed Calculation Settings", Conversion from text to number list box.

### Example

=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.