Use numerals (without zeros for even hours) when listing a time.

  • The program begins at 3 p.m.
  • The play runs from 5 to 6:30 p.m. on Thursday.

Spell out noon and midnight (but do not capitalize).
It is not necessary to say or write “12 noon” or “12 midnight.”

  • The office is closed from noon to 1 p.m.
  • 10:30 a.m.–noon
  • noon–3 p.m.
  • 4 p.m.–midnight

Months are spelled out when they stand alone or are listed with only a year.
When used with a specific date, abbreviate January, February and August through December. Follow the year with a comma when used with a specific date within a sentence.

  • The event takes place in February.
  • The event took place in February 2017.
  • The event took place Feb. 15, 2017, on campus.

Do not abbreviate days of the week unless pressed for space online.

Avoid using “th” after a date on formal invitations. Preferred:

  • You are cordially invited to a party on Feb. 15
  • You are cordially invited to a party on the fifteenth of February

Use “to” in a sentence when the time or date is preceded by “from” or “between.”
Use an en dash without “to” or “from.”

  • Showtime: Thursday 5–6:30 p.m.
  • The play runs from 5 to 6:30 p.m. on Thursday.
  • During the years 2004–2008
  • From 2004 to 2008