Related Clues:

• When daylight saving begins: Abbr.
• Bar closing time, perhaps
• Closing hour for most N.Y.C. bars
• Wee hr
• When the middle watch ends
• Unfortunately common wakeup time for baby Julius Tausig
• When Matthew Lesko's 'Free Money' is likely to air
• When many bars close
• Time when DST starts
• Wee hr., and a hint to a feature common to this puzzle's four longest answers
• When bars close in Boston
• Early morning hr
• When D.S.T. starts or ends
• Common infomercial hour
• Wee hr. of the morning