Unequal hours
| Type: | Unequal hours | 
| Style: | Unequal hours, double | 
| 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: | This scale is to convert between equal and unequal hours | 
Scale located on: Tympan, Womb or Back .
Location(s) detail:
| UL: | Upper left quadrant (inside circular scales) (UL) | 
| UR: | Upper right quadrant (inside circular scales) (UR) | 
Inscription(s):
| Type: | Scale label | 
| Content: | HORE INÆGVALES | 
| Translation: | Unequal hours | 
| Language: | Latin | 
| Script: | Roman Capital | 
| Notes: | Appears twice, once in each quadrant | 
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| Type: | Scale label | 
| Content: | HORÆ ÆQVALES | 
| Translation: | Equal hours | 
| Language: | Latin | 
| Script: | Roman Capital | 
| Notes: | Appears twice, once in each quadrant. The S in ÆQVALES is backwards | 
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