Mother's Day
Mother’s Day celebrates the achievements and efforts of mothers and mother figures.
Elsewhere on timeanddate.com
Republic Day
Italy’s Republic Day is an annual public holiday on June 2 to commemorates the date Italians voted for their country end the monarchy and become a republic.
AM and PM Explained
How does the 12-hour clock system work? Is midnight 12 am or 12 pm?
Daylight Saving Time (DST)
Why do many countries set the clocks back and forth an hour twice a year?