Equal hours
| Type: | Equal hours |
| Geometry: | Circular, concentric |
| Unit of measurement: | Times of day |
| Numbered: | Not numbered |
| Repeats: | 1 times |
| Notes: | The equal-hour lines are scratched onto to the edge of the instrument every 15° (i.e., every hour) |
Scale located on: Limb .
Location(s) detail:
| edge: | scale on the outside edge of the limb (edge) |