Index - D
| dateFmt | Data.Time.Format, Data.Time |
| dateTimeFmt | Data.Time.Format, Data.Time |
| Day | Data.Time.Calendar, Data.Time |
| dayAndTimeFormat | Data.Time.Format.ISO8601 |
| dayFractionToTimeOfDay | Data.Time.LocalTime, Data.Time |
| DayOfWeek | Data.Time.Calendar, Data.Time |
| dayOfWeek | Data.Time.Calendar, Data.Time |
| dayOfYearToMonthAndDay | Data.Time.Calendar.MonthDay |
| daysAndTimeOfDayToTime | Data.Time.LocalTime, Data.Time |
| defaultTimeLocale | Data.Time.Format, Data.Time |
| diffAbsoluteTime | Data.Time.Clock.TAI |
| diffDays | Data.Time.Calendar, Data.Time |
| diffGregorianDurationClip | Data.Time.Calendar, Data.Time |
| diffGregorianDurationRollOver | Data.Time.Calendar, Data.Time |
| diffJulianDurationClip | Data.Time.Calendar.Julian |
| diffJulianDurationRollOver | Data.Time.Calendar.Julian |
| diffLocalTime | Data.Time.LocalTime, Data.Time |
| DiffTime | Data.Time.Clock, Data.Time |
| diffTimeToPicoseconds | Data.Time.Clock, Data.Time |
| diffUTCTime | Data.Time.Clock, Data.Time |
| durationDaysFormat | Data.Time.Format.ISO8601 |
| durationTimeFormat | Data.Time.Format.ISO8601 |