MySQL YEARWEEK() Function

Return the year and week number for a date:

SELECT YEARWEEK("2017-06-15");

Definition and Usage

The YEARWEEK() function returns the year and week number (a number from 0 to 53) for a given date.

YEARWEEK(date, firstdayofweek)

Parameter	Description
date	Required. The date or datetime value to extract the year and week number from
firstdayofweek	Optional. Specifies what day the week starts on. Can be one of the following: 0 - First day of week is Sunday 1 - First day of week is Monday and the first week has more than 3 days 2 - First day of week is Sunday 3 - First day of week is Monday and the first week has more than 3 days 4 - First day of week is Sunday and the first week has more than 3 days 5 - First day of week is Monday 6 - First day of week is Sunday and the first week has more than 3 days 7 - First day of week is Monday

Parameter

Description

date

Required. The date or datetime value to extract the year and week number from

firstdayofweek

Optional. Specifies what day the week starts on. Can be one of the following:

Works in:	From MySQL 4.0

Return the year and week number for a date:

SELECT YEARWEEK("2017-10-25");

Return the year and week number for the current system date:

SELECT YEARWEEK(CURDATE());