Understanding Time Concepts

What is the standard unit of time?

• second

• day

• hour

• minute

How many seconds are in a minute?

• 45

• 30

• 60

• 120

What is the difference between AM and PM?

• AM refers to the time before noon, while PM refers to the time after noon.

• AM and PM both refer to the same time period.

• AM is used for evening hours, while PM is used for morning hours.

• AM is a term used in military time, while PM is used in civilian time.

How many hours are in a day?

• 18 hours

• 12 hours

• 24 hours

• 30 hours

What is a leap year?

• A leap year is a year that has 366 days and occurs every five years.

• A leap year is a year with 365 days that occurs every year.

• A leap year is a year that has 364 days and occurs every two years.

• A leap year is a year that has 366 days instead of the usual 365, occurring every four years.

How do you convert 24-hour time to 12-hour time?

• Simply read the time as is.

• Add 12 to the hour for PM times only.

• Convert 24-hour time to 12-hour time by adjusting hours and adding AM/PM.

• Use a calculator to convert the time.

What is the term for the time it takes for the Earth to rotate once on its axis?

• week

• year

• day

• month

What is the significance of the Greenwich Mean Time (GMT)?

• GMT is the local time for London only.

• GMT is a measurement of geographical distance.

• GMT is significant as a global time standard for coordinating time across different regions.

• GMT is used exclusively for military operations.

How do time zones affect global communication?

• Time zones have no impact on communication.

• Time zones can lead to scheduling challenges and affect the availability of individuals for communication.

• Time zones only affect travel, not communication.

• All countries use the same time zone for communication.

What is Daylight Saving Time and why is it used?

• Daylight Saving Time is the practice of setting clocks back by one hour in winter to save energy.

• Daylight Saving Time is a method of adjusting work hours to match school schedules.

• Daylight Saving Time is the practice of advancing clocks by one hour during warmer months to extend evening daylight.

• Daylight Saving Time is the practice of changing clocks every month to confuse people.