Unequal hours
| Type: | Unequal hours | 
| Style: | Inward from sighting vane. | 
| Geometry: | Linear | 
| 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) | 
Scale located on: Rule, Alidade, Regular or Pointer .
Location(s) detail:
| Rule, right arm: | Scales found on the right arm of a rule or alidade. (Rule, right arm) |