7 Big Astro Events in Your Lifetime
Your astronomical bucket list—the biggest sky and space highlights of the next half-century you can see with your own eyes.
Elsewhere on timeanddate.com
Eid al-Fitr
Eid al-Fitr is a holiday to mark the end of the Islamic month of Ramadan, during which Muslims fast during the hours of daylight.
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?