Other Uses Of Colon
We also use a colon to separate hours, minutes and seconds when recording the time.
Come over around 8:15.
Mary was gone by 9:00 p.m.
The timer is set for 16:30:15.
In literature, it can be used to separate chapters and verses, or acts and scenes.
Turn to III: iv in the play.
A famous Bible passage is Luke 2:16.
Commas can be used to identify the name of the speaker in a lengthy section of dialogue such as in a play.
Martin: Where have you been?
Alan: Out. Walking.
Martin: Do you know what time it is?
Alan: No. And I don’t care, either.
In a business letter, the salutation can be followed by a colon.
To Whom It May Concern: