Returns the year for a date as a number (e.g. 2014).
The date to which the operator is applied. must be a valid expression that resolves to a Date, a Timestamp, or an ObjectID.
Optional
The timezone of the operation result. must be a valid expression that resolves to a string formatted as either an Olson Timezone Identifier or a UTC Offset. If no timezone is provided, the result is displayed in UTC.
https://www.mongodb.com/docs/manual/reference/operator/aggregation/year/#mongodb-expression-exp.-year
Generated using TypeDoc
Returns the year for a date as a number (e.g. 2014).