Question

How time was measured when pendulum clocks were not available?​

Answer 1

Answer:

The Sun was man's first clock. Long ago men guessed at the time of day by watching the Sun as it moved across the sky. The sundial was one of the earliest devices for measuring time. But it can only work on a day with plenty of sunlight. Early people also used ropes with knots tied on regular intervals. An hourglass or sandglass tells time by the means of sand trickling through a narrow opening.

HOPE IT HELPS. Got most of the info from my reference book.