length
The length of the ISO week-based year that this date falls in, either 52 or 53 weeks.
The length of the ISO week-based year that this date-time falls in, either 52 or 53 weeks.
The length of the ISO week-based year that this date falls in, either 52 or 53 weeks.
The length of the ISO week-based year that this date-time falls in, either 52 or 53 weeks.