Power Query
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Date
Date.AddDays
Date.AddMonths
Date.AddQuarters
Date.AddWeeks
Date.AddYears
Date.Day
Date.DayOfWeek
Date.DayOfWeekName
Date.DayOfYear
Date.DaysInMonth
Date.EndOfDay
Date.EndOfMonth
Date.EndOfQuarter
Date.EndOfWeek
Date.EndOfYear
Date.From
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Date.IsInCurrentDay
Date.IsInCurrentMonth
Date.IsInCurrentQuarter
Date.IsInCurrentWeek
Date.IsInCurrentYear
Date.IsInNextDay
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Date.IsInNextNDays
Date.IsInNextNMonths
Date.IsInNextNQuarters
Date.IsInNextNWeeks
Date.IsInNextNYears
Date.IsInNextQuarter
Date.IsInNextWeek
Date.IsInNextYear
Date.IsInPreviousDay
Date.IsInPreviousMonth
Date.IsInPreviousNDays
Date.IsInPreviousNMonths
Date.IsInPreviousNQuarters
Date.IsInPreviousNWeeks
Date.IsInPreviousNYears
Date.IsInPreviousQuarter
Date.IsInPreviousWeek
Date.IsInPreviousYear
Date.IsInYearToDate
Date.IsLeapYear
Date.Month
Date.MonthName
Date.QuarterOfYear
Date.StartOfDay
Date.StartOfMonth
Date.StartOfQuarter
Date.StartOfWeek
Date.StartOfYear
Date.ToRecord
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Date.WeekOfMonth
Date.WeekOfYear
Date.Year
Time.EndOfHour
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Date.WeekOfYear

Date.WeekOfYear

Returns a number from 1 to 54 indicating which week of the year this date falls in.
function (optional dateTime as nullable any, optional firstDayOfWeek as nullable any) as nullable any

Description

Returns a number from 1 to 54 indicating which week of the year the date, dateTime, falls in.

Category

Date

Examples

Determine which week of the year March 23rd, 2011 falls in (#date(2011, 03, 23)).
Date.WeekOfYear(#date(2011, 03, 23))
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Date.WeekOfYear
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