English Grammar for the Utterly Confused - Laurie Rozakis 2003

Capitalize Time and Other Proper Nouns
Chapter 11 Capitalization and Abbreviations
Part 4 A Writers Tools

1. Capitalize abbreviations for time.

6:00 A.M. 7:00 P.M.

2. Capitalize names of celestial bodies, except the moon and the sun.

the Milky Way the Big Dipper

Capitalize the earth only when it is used as a planet.

The Earth is not flat.

3. Capitalize names of awards.

the Nobel Peace Prize the Caldecott Medal

4. Capitalize the words I and O.

Quickly, I turned around.

O! Did you see that?