BEIJING TOKYO SYDNEY HOW WERE TIME ZONES CREATED? NEW YORK LONDON Moscow
19th century Expansion of transport and communication
19th century Expansion of transport and communication There was a need for unified time-keeping system
Time zones were created Sun sun Sun 800 100 0200020 0700 23002400 0000 1 00
Sundials were the earliest time measuring devices we know of and then came water clocks
the 17th century The pendulum clock was developed.
In 1764, the chronometer was invented and it changed the game.
Even after the chronometer many towns and cities set clocks based on sunsets and sunrises.
PRIME MERIDIAN [GREENWICH 20 10 Even before the late 1800s, various meridians were used for longitudinal references among different countries
PRIME MERIDIAN [GREEN CH) The Greenwich Meridian was the most popular of these. 20 10 0
Sir Standford Fleming One of the major contributors in developing a satisfactory worldwide system of keeping time.
PHOENIx-7 DACCA +6 CUBA-5 . POLYNESIA-9. PEKIN+8 NIUE -11. LONDON 0 M EXIC6 DELHI+5 BAKER-12 RON, A +1 TOKYO 9