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## ISOUKENR

ISOUKENR beregner ukenumret ut fra den interne tidsverdien.

The International Standard ISO 8601 has decreed that Monday shall be the first day of the week. A week that lies partly in one year and partly in another is assigned a number in the year in which most of its days lie. That means that week number 1 of any year is the week that contains the January 4th.

### Syntaks

ISOWEEKNUM(Number)

Nummer er det interne datonummeret.

### Eksempler

=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.