There is a hidden pause control in the game. When you press the 'SPACEBAR' to access the overhead map screen, if you keep it held down the clock stops until you release it.
08-"ROSS" | 064-"RING" | 120-"TREE" | 176-"SPOT" 232-"HAIR"
16-"RATT" | 072-"GIRL" | 128-"SINK" | 184-"PALM" 240-"SIGN"
24-"LISA" | 080-"GOLD" | 136-"BIKE" | 192-"LOCK" 248-"MYTH"
32-"DAVE" | 088-"OPAL" | 144-"BIRD" | 200-"SAFE"
40-"IRON" | 096-"SONG" | 152-"TAPE" | 208-"WORM"
48-"LEAD" | 104-"FIRE" | 160-"VASE" | 216-"NOSE"
56-"WEED" | 112-"LAMP" | 168-"PILL" | 224-"EYES"