the answer is Colon...
Use a colon to introduce a long and weighty quotation.
Use the colon to express time.
8:30 A.M.
12:25 P.M.
A colon is used after the salutation of a business letter.
Dear Sir:
Dear Dr. Brown:
To whom it may concern:
Dear Mrs. Short:
Use a colon to indicate the location of a passage when you cite a
book or a publication.
Luke 4:7
New York Times, November 20, 21:7
Use a colon when stating proportions.
The ratio was 16 to 1 (16:1).
Use a colon between a main title and a subtitle of a work.
