Assumption of Mary
The Christian feast of the Assumption of Mary is on or around Aug 15 in most countries. A few celebrate Assumption Day at other times of the year.
Elsewhere on timeanddate.com
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?
12 Months of the 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?