Date and Time FAQ

What is meant by astronomical time?
Does the atomic clocks deviate?
What will be the travel time from Los Angeles to Karachi, if I travel in an average speed of 1121.8 km/h?
Does all the countries in Northern Hemisphere practice daylight saving time?
What is meant by Standard time?
When does the daylight saving time begins and ends in northern hemisphere?
When does the daylight saving time starts and ends at Southern Hemisphere?
What are the latitude and longitude coordinates of Montserrat?
When does the Standard time starts and ends in southern hemisphere?
Why most of the countries around the world practices DST?