Related Clues:

• It starts in early Apr.
• N.Y.C. summer hrs.
• Summer hrs. at the White House
• Spring-ahead letters
• N.J. summer setting
• Summer N.Y. hrs.
• Timezone letters
• Tennis's U.S. Open is played on it: Abbr.
• Time zone abbr.
• Observance through Oct.
• Setting for a Wash. Nats game
• Summer hrs. in RI
• P.M. brightener
• Summer hrs. in N.Y.C.
• Summer at MIT, e.g.