| makeTimeOfDayValid | Data.Time.LocalTime.Compat, Data.Time.Compat |
| midday | Data.Time.LocalTime.Compat, Data.Time.Compat |
| midnight | Data.Time.LocalTime.Compat, Data.Time.Compat |
| minutesToTimeZone | Data.Time.LocalTime.Compat, Data.Time.Compat |
| MkMonth | Data.Time.Calendar.Month.Compat |
| MkQuarter | Data.Time.Calendar.Quarter.Compat |
| MkSystemTime | Data.Time.Clock.System.Compat |
| ModifiedJulianDay | Data.Time.Calendar.Compat, Data.Time.Compat |
| ModJulianDate | Data.Time.Clock.Compat, Data.Time.Compat |
| Monday | Data.Time.Calendar.WeekDate.Compat, Data.Time.Calendar.Compat, Data.Time.Compat |
| mondayStartWeek | Data.Time.Calendar.OrdinalDate.Compat |
| Month | Data.Time.Calendar.Month.Compat |
| monthAndDayToDayOfYear | Data.Time.Calendar.MonthDay.Compat |
| monthAndDayToDayOfYearValid | Data.Time.Calendar.MonthDay.Compat |
| MonthDay | Data.Time.Calendar.Month.Compat |
| monthLength | Data.Time.Calendar.MonthDay.Compat |
| MonthOfYear | Data.Time.Clock.Compat, Data.Time.Calendar.MonthDay.Compat, Data.Time.Calendar.Compat, Data.Time.Compat, Data.Time.Calendar.Julian.Compat |
| monthOfYearQuarter | Data.Time.Calendar.Quarter.Compat |
| monthQuarter | Data.Time.Calendar.Quarter.Compat |
| months | Data.Time.Format.Compat, Data.Time.Compat |