TIME MEASURE.
| 60 seconds | = | 1 minute. |
| 60 minutes | = | 1 hour. |
| 24 hours | = | 1 day. |
| 7 days | = | 1 week. |
| 28, 29, 30, or 31 days | = | 1 calendar month |
| (30 days = 1 month in computing interest). | ||
| 365 days | = | 1 year. |
| 366 days | = | 1 leap year. |
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. |
LONG MEASURE.
| 12 inches | = | 1 foot. |
| 3 feet | = | 1 yard. |
| 5½ yards | = | 1 rod. |
| 40 rods | = | 1 furlong. |
| 8 furlongs | = | 1 statute mile. |
| 3 miles | = | 1 league. |
CLOTH MEASURE.
| 2¼ inches | = | 1 nail. |
| 4 nails | = | 1 quarter. |
| 4 quarters | = | 1 yard. |
MARINERS’ MEASURE.
| 6 feet | = | 1 fathom. |
| 20 fathoms | = | 1 cable length. |
| 7½ ca. lgth. | = | 1 mile. |
| 5280 feet | = | 1 stat. mile. |
| 6085 feet | = | 1 naut. mile. |