There are 86,400 seconds in a day. This calculation is based on the conventional definition of the length of a day; for convenience, a day is defined as 24 hours.
A week has seven days. Weekdays are Monday, Tuesday, Wednesday, Thursday and Friday, whereas weekends consist of Saturday and Sunday. The concept of a seven-day week originated in ancient Babylon.
D-Day occurred on June 6, 1944 when the Allies invaded Normandy, successfully turning the tide of World War II. Over 156,000 allied troops landed on 50 miles of beach in the largest seaborne invasion in history, liberating Northern France over the course of the next three months.
D-Day was important for several reasons. The most important reason was that it marked the first time in the war that Allied troops threatened Germany's control of Europe. Up until then, the fighting had been taking place very far away from the German border.
Business days are Monday, Tuesday, Wednesday, Thursday and Friday. They do not include the weekend days of Saturday and Sunday. Federal and state holidays are not counted as business days.
Family Day is a public holiday that celebrates the importance of family life, urging people to spend time with their families. It is observed in Nevada, Arizona, Alberta, British Columbia, Ontario and Saskatchewan, as well as a few other places.
The BBC Children in Need Appeal Night is held annually in the middle of November. This BBC U.K. charity raises money to provide grants to U.K. charity groups that help disadvantaged children. The first televised Appeal Night telethon took place in 1980.
The United States military uses the term D-day as a start date for field operations. There are many D-day dates in history but the most famous is the one that occurred on June 6, 1944.
Boxing Day is celebrated on December 26 every year in England, Ireland, Australia, Canada, Hong Kong, Kenya, New Zealand, South Africa and Trinidad. The holiday itself comes from servants who worked for the British upper class. The servants had to work on Christmas, but they left to see their famili
Gaylord Nelson founded Earth Day. It was renamed officially by the U.N. in 2009 as International Mother Earth Day, and some schools and communities celebrate the day for an entire week. Also, the first Earth Day was celebrated on April 22, 1970.