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AM and PM Explained
How does the 12-hour clock system work? Is midnight 12 am or 12 pm?
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?
Switzerland's National Day falls on August 1.