Related Clues:

• January 27, 1756 (Mystery Person's birthdate), e.g.
• Day planner abbr.
• Meatless day during W.W. II: Abbr.
• Weekday, abbr.
• Election Day, e.g.: Abbr.
• "Super" primary day: abbr.
• Datebook letters
• One before Hump Day: abbr.
• When to vote, usually: Abbr.
• Digital-watch abbr.
• Elec. Day, e.g.
• Night that 'Happy Days' was on: Abbr.
• When Mardi Gras falls: Abbr.
• Calendar ref
• Work week starter after many a holiday: Abbr.