Unequal hours
| Type: | Unequal hours |
| Geometry: | Arc |
| Unit of measurement: | 1/12 of daylight |
| (Numbering) starts at: | 1 |
| (Numbering) ends at: | 12 |
| Numbered: | every 1 |
| Repeats: | 1 times |
| Divided every: | 1 (1/12 of daylight) |
| Notes: | Valid for converting between hours of daylight at 49°. |
Scale located on: Tympan, Womb or Back .
Location(s) detail:
| UR: | Upper right quadrant (inside circular scales) (UR) |