CIRCULAR MEASURE.
| 60 seconds | = | 1 minute. |
| 60 minutes | = | 1 degree. |
| 30 degrees | = | 1 sign. |
| 90 degrees | = | 1 quadrant. |
| 4 quadrants | = | 12 signs, or 360 degrees = 1 circle. |
| 60 seconds | = | 1 minute. |
| 60 minutes | = | 1 degree. |
| 30 degrees | = | 1 sign. |
| 90 degrees | = | 1 quadrant. |
| 4 quadrants | = | 12 signs, or 360 degrees = 1 circle. |