Index - W
| wDays | Data.Time.Format, Data.Time | 
| Wednesday | Data.Time.Calendar.WeekDate, Data.Time.Calendar, Data.Time | 
| weekAllDays | Data.Time.Calendar, Data.Time | 
| weekDateFormat | Data.Time.Format.ISO8601 | 
| weekFirstDay | Data.Time.Calendar, Data.Time | 
| weekLastDay | Data.Time.Calendar, Data.Time | 
| WeekOfYear | Data.Time.Calendar.OrdinalDate, Data.Time.Calendar.WeekDate | 
| withTimeDesignator | Data.Time.Format.ISO8601 | 
| withUTCDesignator | Data.Time.Format.ISO8601 |