> For the complete documentation index, see [llms.txt](https://docs.inforiver.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.inforiver.com/formula-syntax/time-intelligence-functions.md). # Time intelligence functions

NAME	DESCRIPTION
AGGREGATE	Performs the specified aggregation like minimum/maximum/average/sum on a measure over a specified time range.
COLUMN_PERIOD	Returns the start, end, previous, or next time period as specified.
FILTER	Filters measure values across a period range that meet specified conditions.
LASTNDAY	Used to filter data for the last n days before the current date.
LASTNMONTH	Used to filter data for the last n months before the current month.
LASTNQTR	Used to filter data for the last n quarters before the current quarter.
LASTNYEAR	Used to filter data for the last n years before the current year.
MONTHPERIOD	Returns data for a month based on the year and month number.
QTRPERIOD	Returns data for a range of quarters based on the year and quarter number.
YEARPERIOD	Returns data for the year(s) based on the input years passed.
NEXTNDAY	Used to filter data for the next n days after the current date.
NEXTNMONTH	Used to filter data for the next n months after the current month.
NEXTNQTR	Used to filter data for the next n quarters after the current quarter.
NEXTNYEAR	Used to filter data for the next n years after the current year.
MTD	Month-to-Date. Returns data from the 1st of the current month through the current date. An offset can be used to include data from the past months.
QTD	Quarter-to-Date. Returns data from the 1st of the current quarter to the current date. An offset can be used to include data from the past quarters.
YTD	Year-to-Date. Returns data from the start of the current year to the present date. An offset can be used to include data from the past years.
MOVINGAVERAGE	Returns the moving average of a measure over a specified date range.
MOVINGSUM	Returns the moving sum of a measure over a specified date range.
SHIFT	Returns the date after shifting a date either backwards or forwards by a specified time period.
TOTALMTD	Evaluates the month-to-date value of the measure in the current context. Returns data from the start of the current month up to the present date.
TOTALQTD	Evaluates the quarter-to-date value of the measure in the current context. Returns data from the start of the current calendar or fiscal quarter up to the present date.
TOTALYTD	Evaluates the year-to-date value of the measure in the current context. Returns data from the start of the current calendar or fiscal year (e.g., January 1) up to the present date.
VALUEAT	Returns the value of a measure for a specified date or a date shift relative to the current column.

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