Date.IsInPreviousNMonths is a Power Query M function that indicates whether the given date(time) value occurs during the previous number of months, as determined by the system. The function returns a boolean value (true or false).
Compatible with: Power BI Service Power BI Desktop Excel Microsoft 365
Date.IsInPreviousNMonths( dateTime as any, months as number, ) as nullable logical
Indicates whether the given datetime value
dateTime occurs during the previous number of months, as determined by the current date and time on the system. Note that this function will return false when passed a value that occurs within the current month.
datetimezonevalue to be evaluated.
months: The number of months.
Determine if the month before the current system time is in the previous two months.
// Output: true Date.IsInPreviousNMonths( Date.AddMonths( DateTime.FixedLocalNow(), -1 ), 2 )
Other functions related to Date.IsInPreviousNMonths are: