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Date Aggregation Operators

Note

For details on specific operator, including syntax and examples, click on the specific operator to go to its reference page.

Name Description
$dayOfYear Returns the day of the year for a date as a number between 1 and 366 (leap year).
$dayOfMonth Returns the day of the month for a date as a number between 1 and 31.
$dayOfWeek Returns the day of the week for a date as a number between 1 (Sunday) and 7 (Saturday).
$year Returns the year for a date as a number (e.g. 2014).
$month Returns the month for a date as a number between 1 (January) and 12 (December).
$week Returns the week number for a date as a number between 0 (the partial week that precedes the first Sunday of the year) and 53 (leap year).
$hour Returns the hour for a date as a number between 0 and 23.
$minute Returns the minute for a date as a number between 0 and 59.
$second Returns the seconds for a date as a number between 0 and 60 (leap seconds).
$millisecond Returns the milliseconds of a date as a number between 0 and 999.
$dateToString Returns the date as a formatted string.
$isoDayOfWeek Returns the weekday number in ISO 8601 format, ranging from 1 (for Monday) to 7 (for Sunday).
$isoWeek Returns the week number in ISO 8601 format, ranging from 1 to 53. Week numbers start at 1 with the week (Monday through Sunday) that contains the year’s first Thursday.
$isoWeekYear Returns the year number in ISO 8601 format. The year starts with the Monday of week 1 (ISO 8601) and ends with the Sunday of the last week (ISO 8601).