The DatePart function extracts the specified date part from a date value.

Sigma returns the result(s) in your organization's time zone. This may cause days, months, or years to appear offset, if the specified time zone is ahead of the organization's time zone. To view the output presented in the specified time zone, apply the ConvertTimezone function.

DatePart is one of Sigma's Date functions.


DatePart(precision, date, [timezone])

The function has the following arguments:

The date part extracted. Can be one of “year”, "quarter", “month”, “week”, “day”, "weekday", “hour”, “minute”, “second”, “millisecond”, or "epoch".
Date or column of dates where Sigma extracts the date part.
The value must be a date. If the column is not in the appropriate format, use the Date function on the argument.
Name of IANA time zone for the date part. For example, ”America/Los_Angeles”. If omitted, defaults to UTC.


DatePart("year", [Invoice Date])

Extracts the year from each value in the column of invoice dates.

DatePart("week", Date("2007-01-10 10:00:00"))

Returns 2, the week number of this date; weeks in Sigma start on Sunday, by default.

DatePart("year", Date([Date]))DatePart("quarter", Date([Date]))DatePart("month", Date([Date]))
DatePart("week", Date([Date]))DatePart("day", Date([Date]))DatePart("weekday", Date([Date]))

The DatePart function returns the following values for the Date column:

Table with a Date column, Year of Date, Quarter of Date, Month of Date, Week of Date, Day of Date, and Weekday of Date columns extracted.

DatePart("year", Date([Date]))
DatePart("hour", Date([Date]))DatePart("minute", Date([Date]))DatePart("second", Date([Date]))DatePart("millisecond", Date([Date]))DatePart("epoch", Date([Date]))