Index - Y
| Year | Data.Time.Calendar.OrdinalDate, Data.Time.Calendar.Julian, Data.Time.Calendar.WeekDate, Data.Time.Calendar, Data.Time | 
| YearDay | Data.Time.Calendar.OrdinalDate | 
| yearFormat | Data.Time.Format.ISO8601 | 
| YearMonth | Data.Time.Calendar.Month | 
| YearMonthDay | Data.Time.Calendar, Data.Time | 
| yearMonthFormat | Data.Time.Format.ISO8601 | 
| YearQuarter | Data.Time.Calendar.Quarter | 
| YearWeekDay | Data.Time.Calendar.WeekDate | 
| yearWeekFormat | Data.Time.Format.ISO8601 |