The extractField task extracts a specific time field — such as day, month, year, or any other supported unit — from a given timestamp.
Use extractField when you need to pull a specific time component from a dataset, such as extracting just the year from a timestamp for sorting or reporting purposes.
In this example, the inputTime object pulls time fields from {"$ref": "timeProperties#/definitions/timeObject"}. The field selected is Year and outputFormat is String. Setting outputFormat to Number produces an identical result.
The outgoing timeFieldValue returns the year "2020".
