Fathers' Day
Father’s Day celebrates fatherhood and male parenting on different dates worldwide.
Elsewhere on timeanddate.com
AM and PM Explained
How does the 12-hour clock system work? Is midnight 12 am or 12 pm?
First day of Yom Kippur (Jewish community)
Yom Kippur (Day of Atonement) is an important Jewish holiday that centers on the themes of atonement and repentance.
Daylight Saving Time (DST)
Why do many countries set the clocks back and forth an hour twice a year?