a.m. and p.m.

We use a.m. (ante meridiem) for the time between 12 midnight and 12 noon. We use p.m. (post meridiem), for the time after 12 noon until 12 midnight.

12 o’clock during day is written as 12 noon. 12 o’clock at night is written as 12 midnight.

Ryan reaches school at 7 o’clock in the morning. It is written as 7:00 a.m.

Ryan returns home from school at 2 o’clock in the afternoon. It is written as 2:00 p.m.

Time before and after

Write the time, as shown.

a. b. c. d.

Example 1: What will be the time 2 hours after 12:30 a.m.?

12:30 a.m. 1:30 a.m. 2:30 a.m.

Example 2: What will be the time 3 hours before 11: 30 p.m.?

11:30 p.m. 10:30 p.m. 9:30 p.m. 8:30 p.m.

Write the time using a.m. or p.m. in your notebook.

a. 5:00 in the morning b. 11:30 at night

c. 1:15 in the afternoon d. 12:00 in the midnight

Solve the following. Write the answers in your notebook.

a. 4 hours after 1:00 a.m. b. 2 hours after 11 p.m.

c. 20 minutes after 4:30 p.m. d. 15 minutes after 2: 45 p.m.