October 12, 2015

Difference in Time

Lines of longitude run from the North Pole to the South Pole. They are “labeled” from the Greenwich Meridian which has the value of 0˚. Lines of Longitude on the eastern side (to the right) of the Greenwich Meridian increase in value until 180˚ E. Lines of Longitude on the […]
October 12, 2015

Calculating Sun Time

As there is a time difference between South Africa and Australia, someone living in South Africa who wants to watch a televised cricket match in Australia will have to get up very early in the morning. A match in Sydney (Australia) may start at 11:00 Sydney time, but in South […]
October 12, 2015

International time zones

Universal Standard Time (UST) is the sun time on the Greenwich Meridian. Countries work out their Standard Time relative to the position of their longitude west or east of the Greenwich Meridian. As South Africa takes its time from 30˚ East of Greenwich and therefore two hours ahead of UST, […]
October 12, 2015

International Date Line

The International Date Line (Date Line) is one of the strangest aspects of a study of time zones. Although it follows the general course along the 180O Line of Longitude, it does not run through any country, but runs only through the ocean in that area. As it avoids passing […]