Time
How many time zones are there?
24 time zones
Before clocks were invented, this was used to tell time.
The sun
Midnight is 12 ...
am
Midday is 12 ...
pm
How proposed the idea of time zones?
Sir Sanford Flemming
Where is the Prime Meridian located?
In which country was the International Meridian Conference held?
England
15
Which advancement in technology made it difficult to keep using the position of the sun for time keeping?
The invention of train
In which year was the idea of time zones proposed?
1878
When was the International Meridian Conference?
1884
In which city was the International Meridian Conference held?
Greenwich
What does GMT stand for?
Greenwich Mean Time
What does UTC stand for?
Coordinated Universal Time