[[["Easy to understand","easyToUnderstand","thumb-up"],["Solved my problem","solvedMyProblem","thumb-up"],["Other","otherUp","thumb-up"]],[["Hard to understand","hardToUnderstand","thumb-down"],["Incorrect information or sample code","incorrectInformationOrSampleCode","thumb-down"],["Missing the information/samples I need","missingTheInformationSamplesINeed","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-07-22 UTC."],[],[],null,["# week_start_day\n\n\u003cbr /\u003e\n\nUsage\n-----\n\n```\nweek_start_day: monday\n```\n\nDefinition\n----------\n\nYou can adjust the day that Looker considers to be the start of a week with the `week_start_day` parameter. Using `week_start_day` affects:\n\n- The way that data appears in your tables\n- The sort order of the tables\n- The operation of filters\n\nThe `week_start_day` parameter works with three of the four week-related [`timeframes`](/looker/docs/reference/param-field-dimension-group#timeframes):\n\n`week_start_day` does not work with `week_of_year` because that timeframe is based on the ISO standard, which uses Monday weeks.\n\nExamples\n--------\n\nAdjust weeks to start on Sunday instead of Monday: \n\n week_start_day: sunday"]]
