Time, Clock & Calendar

Problems involving clocks, calendars, dates and time.

Time, Clock & Calendar Puzzles

Medium

How many days are there in January, March, May, July, August, October and December combined?

Hard

If today is Monday, what day of the week will it be 100 days from today?

Hard

A meeting starts at 9:35 AM and lasts 2 hours 45 minutes. At what time does it end?

Expert

How many times do the hour and minute hands of a standard 12-hour clock overlap in 12 hours?

Medium

A train leaves at 7:45 AM and reaches its destination at 11:15 AM. How long is the journey?

Medium

What is the smaller angle between the hour and minute hands at exactly 2:30?

Hard

At exactly what time between 4:00 and 5:00 do the clock hands overlap?

Medium

How many times do the hour and minute hands overlap in a 12-hour period?

Medium

If today is Monday, what day of the week will it be 100 days from today?

Medium

If January 1 of a non-leap year is a Tuesday, what day of the week is December 31?

Hard

How many odd days are there in 100 years if the period contains exactly 24 leap years?

Hard

A clock loses 5 minutes every hour. It is set correctly at noon. What time will it display after 6 real hours?

Medium

A meeting begins at 9:45 AM and lasts 2 hours 35 minutes. At what time does it end?

Hard

A train journey takes 3 hours 45 minutes. The train departs at 10:35 PM. What time does it arrive the next day?

Hard

A clock shows 6:00. At what time between 6:00 and 7:00 will the hands be exactly opposite each other?

Medium

A clock shows exactly 3:00. At what exact time between 3:00 and 4:00 will the hour and minute hands overlap?

Hard

What is the smaller angle between the hour and minute hands of a clock at exactly 5:40?