Updated January 17 2026 Most people are probably unaware of this but the length of a solar day, which is the natural day measured by the rising and setting of the Sun isn't always 24 hours. It varies slightly throughout the course of the year and the days in mid September are the shortest solar days in… Continue reading How the length of a day changes over the year
On June 30 2015 an extra second will be inserted into the very end of the day. This extra second is called a leap second. Why do we need leap seconds? Although we take the average length of a day to be 24 hours, the mean solar day, or average "natural" day measured by the… Continue reading Jun 30 2015 – Leap Second
This year, for the majority of Christians, Sunday 5 April will be Easter Sunday, which is one of the most of the most important dates in the Christian calendar. The Pope giving his traditional Easter message. In addition Easter is also widely marked by non Christians. In many countries chocolate Easter Eggs and Easter Bunnies are bought… Continue reading Easter Sunday 5-th April
February 12, known as Darwin Day, is significant for both Charles Darwin's and Abraham Lincoln's birthdays, but it also marks an important astronomical event. On this day in 2026, the solar time is 14 minutes behind clock time, the greatest value of the year, with solar noon occurring shortly after 12:14 PM in London.
The celebration of Christmas varies, with most Christians observing it on December 25, while Orthodox Christians celebrate on January 7 due to differences from the Julian to Gregorian calendars. These calendar changes, initiated by Pope Gregory XIII in 1582, addressed drift issues in previous systems, affecting seasonal alignment and date consistency in Christian practices.
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