Eve and Morn are proposed as short, specific names for a calendar day that does not start at midnight but at the brink of daylight. Eve starts the evening before, either at a specific clock time like 18:00 or at dusk, sunset or nightfall. Morn (or Morrow) starts the morning after midnight, either at a specific clock time like 06:00 or at dawn or sunrise.
| Term | System | Start | Daybreak, Dayspring |
Early Shift | Mid-day | Late Shift | Dayfall |
|---|---|---|---|---|---|---|---|
| Noon | astronomical | 12:00 −12:00 |
18:00 −06:00 |
20:00 −04:00 |
00:00 | 04:00 | 06:00 |
| Eve | ecclesiastical | 18:00 −06:00 |
00:00 | 02:00 | 06:00 | 10:00 | 12:00 |
| Medieval | sunset | sunrise | zenith | ||||
| Biblical | nightfall | midnight | dayrim | noon | |||
| Day | civil | 00:00 | 06:00 | 08:00 | 12:00 | 16:00 | 18:00 |
| schedule | 03:00 | 09:00 | 11:00 | 15:00 | 19:00 | 21:00 | |
| Morn, Morrow |
ancient | sunrise | zenith | sunset | |||
| natural | dawn | noon | dusk | midnight | |||
| meal | breakfast | lunch | tea, snack | dinner | supper | fast | |
| business | 06:00 | 12:00 | 14:00 | 18:00 | 22:00 | 24:00 | |
| work | 07:00 | 13:00 | 15:00 | 19:00 | 23:00 | 01:00 25:00 | |
| school | 08:00 | 14:00 | 16:00 | 20:00 | 24:00 | 02:00 26:00 | |
| office | 09:00 | 15:00 | 17:00 | 21:00 | 01:00 25:00 |
03:00 27:00 | |
| shop | 10:00 | 16:00 | 18:00 | 22:00 | 02:00 26:00 |
04:00 28:00 | |
| Night, Nite |
astronomical | 12:00 | 18:00 | 20:00 | 24:00 | 04:00 28:00 |
06:00 30:00 |
The days of the week may be renamed accordingly in English, by replacing -day by -eve and -morn, respectively, with the addition of either -noon or -night/-nite for the astronomic observational day that has no date break during natural darkness.
| Civil count | Noon end | Evening end | Midnight start | Morning start | Noon start |
|---|---|---|---|---|---|
| 1 | Monnoon | Moneve | Monday | Monmorn, Monmorrow | Monnight, Monnite |
| 2 | Tuesnoon | Tueseve | Tuesday | Tuesmorn, Tuesmorrow | Tuesnight, Tuesnite |
| 3 | Wednesnoon | Wedneseve | Wednesday | Wednesmorn, Wednesmorrow | Wednesnight, Wednesnite |
| 4 | Thursnoon | Thurseve | Thursday | Thursmorn, Thursmorrow | Thursnight, Thursnite |
| 5 | Frinoon | Friseve | Friday | Frimorn, Frimorrow | Frinight, Frinite |
| 6 | Saturnoon | Satureve, Sabbath, Shabbes |
Saturday | Saturmorn, Saturmorrow | Saturnight, Saturnite |
| 7 | Sunnoon | Suneve | Sunday | Sunmorn, Sunmorrow | Sunnight, Sunnite |