Week Interval for Wednesday-based weeks in Coordinated Universal Time (UTC) (e.g., February 8, 2012 at 12:00 AM). 7 days and 168 hours.
Optional
Week Interval for Wednesday-based weeks in Coordinated Universal Time (UTC) (e.g., February 8, 2012 at 12:00 AM). 7 days and 168 hours.