Sundial Clock

sundial clock; 2″ x 2″ x 5″H; Shadow clocks later named sundials were invented by Greeks and Romans and used by explorers during our age of discovery. The sundial played a fundamental role in finding local time. Watches were notoriously unreliable and needed to be reset often by using sun-time. And up till the 20th C. each locality had its own miniature time zone often differing in minutes only.