![Four children wearing costumes with pumpkin trick or treat buckets in their hands.](http://webcf.waybackmachine.org/web/20211027013741im_/https://c.tadst.com/gfx/300x168/four-children-halloween-costume.jpg)
Halloween
Halloween is a festive occasion that is celebrated in many countries on October 31 each year.
Halloween is a festive occasion that is celebrated in many countries on October 31 each year.
How does the 12-hour clock system work? Is midnight 12 am or 12 pm?
Why do many countries set the clocks back and forth an hour twice a year?
The 12 months of the year are linked to the Moon's orbit around Earth. Why are there 12 months? What do the month names mean?