Evolution of telling time

Main

Fist sun dial was invented in 290bc

290

First candle clock was invented in 723

723

First pocket watch was invented between 1504-1508

1504 - 1508

The first spring driven clock was invented in 1511

1511

First Pendulum clock was invented in 1656

1656

First quartz oscillators was invented in 1927

1927

First automatic clock was invented in 1948

1948

First digital watch was invented in 1972

1972