| Rule SystemV min 1973 - Apr lastSun 2:00 1:00 D | |
| Rule SystemV min 1973 - Oct lastSun 2:00 0 S | |
| Rule SystemV 1974 only - Jan 6 2:00 1:00 D | |
| Rule SystemV 1974 only - Nov lastSun 2:00 0 S | |
| Rule SystemV 1975 only - Feb 23 2:00 1:00 D | |
| Rule SystemV 1975 only - Oct lastSun 2:00 0 S | |
| Rule SystemV 1976 max - Apr lastSun 2:00 1:00 D | |
| Rule SystemV 1976 max - Oct lastSun 2:00 0 S |