Time - AM/PM vs 24 Hour Clock

What are the two main ways to show the time?

• 24 Hour Clock and AM/PM

• Digital and Analog

• Minutes and Hours

• Midnight and Noon

Tags

CCSS.1.MD.B.3

How many hours are there in a day?

• 12

• 24

• 60

• 10

Tags

CCSS.4.MD.A.1

What does AM stand for?

• After Midday

• Ante Meridiem

• After Midnight

• Ante Meridian

Tags

CCSS.L.1.6

CCSS.L.3.6

CCSS.L.K.5A

CCSS.W.2.3

CCSS.W.3.3C

What does PM stand for?

• Post Meridiem

• Pre Meridiem

• Post Midnight

• Pre Midnight

Tags

CCSS.L.1.6

CCSS.L.3.6

CCSS.L.K.5A

CCSS.W.2.3

CCSS.W.3.3C

How do you convert AM/PM to 24 Hour Clock?

• Add 12 to any hour after Noon

• Subtract 12 for the first hour of the day

• No change from 1:00 AM to 12:59 PM

• Add 12 Hours from 1:00 PM to 11:59 PM

Tags

CCSS.1.MD.B.3

How do you convert 24 Hour Clock to AM/PM?

• Add 12 Hours for the first hour of the day

• No change from 01:00 to 11:59

• Just make it PM from 12:00 to 12:59

• Subtract 12 Hours from 13:00 to 23:59

Tags

CCSS.4.MD.A.1

What is the preferred spelling for AM?

• Ante Meridiem

• Ante Meridian

• Post Meridiem

• Post Midnight

Tags

CCSS.RI.5.10

CCSS.RI.6.4

CCSS.RI.7.4

CCSS.RI.8.4

CCSS.RI.9-10.4

What is the correct way to represent Midnight and Noon?

• 12 AM and 12 PM

• 12 Midnight and 12 Noon

• 12 AM and 12 Noon

• 12 Midnight and 12 PM

Tags

CCSS.L.1.6

CCSS.L.3.6

CCSS.L.K.5A

CCSS.W.2.3

CCSS.W.3.3C

What is the recommended way to avoid confusion when using Midnight?

• Use 11:59 PM or 12:01 AM

• Use 23:59 or 00:01

• Use 12:00 AM or 12:00 PM

• Use 12:00 AM or 12:01 AM

Tags

CCSS.L.1.6

CCSS.L.3.6

CCSS.L.K.5A

CCSS.W.2.3

CCSS.W.3.3C

What is the correct spelling for AM?

• Ante Meridiem

• Ante Meridian

• Post Meridiem

• Post Midnight

Tags

CCSS.RI.5.10

CCSS.RI.6.4

CCSS.RI.7.4

CCSS.RI.8.4

CCSS.RI.9-10.4