![African American mother hugging her daughter and holding sunflowers.](http://c.tadst.com/gfx/300x168/mother-daughter-hug-flowers.jpg)
Mothers' Day
Mother’s Day celebrates the achievements and efforts of mothers and mother figures.
Mother’s Day celebrates the achievements and efforts of mothers and mother figures.
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?