![A father and his little son playing on grass.](http://c.tadst.com/gfx/300h/father-and-son-playing-outdoor.jpg)
Fathers' Day
Father’s Day celebrates fatherhood and male parenting on different dates worldwide.
Father’s Day celebrates fatherhood and male parenting on different dates worldwide.
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?
Why are there 12 months? How long are they, and what do the month names mean?