Historical clue formulations

• Clock setting east of Eastern: Abbr. — 2018-08-19
• Puerto Rico is on it year-round, for short — 2016-02-12
• Prince Edward Isl. setting — 2015-11-22
• P.E.I. hours — 2015-04-14
• P.E.I. setting — 2014-09-13
• Prince Edward Island hrs. — 2014-03-19
• Bermuda setting: Abbr. — 2012-11-09
• P.R. hours — 2012-10-28
• Prince Edward I. clock setting — 2012-03-17
• Bermuda hrs. — 2010-05-29
• Winter hrs. in Bermuda — 2010-01-19
• Bermuda hrs. — 2008-10-26
• Winter hrs. in Bermuda — 2007-05-07
• Bermuda hrs. — 2007-01-24
• Prince Edward I. clock setting — 2006-05-12
• Puerto Rico hrs. — 2006-01-15
• Halifax hrs. — 2005-09-25
• Nova Scotia clock setting: Abbr. — 2005-03-07
• Labrador hrs. — 2004-10-30
• N.S. clock setting — 2004-07-23
• Nova Scotia hrs. — 2003-12-26
• Halifax clock setting: Abbr. — 2001-05-23
• N.S. clock setting — 2000-07-08
• Halifax clock setting: Abbr. — 2000-05-06
• Hrs. in Halifax — 1998-09-06
• Inquired, in Dogpatch — 1995-10-29
• Nova Scotia hrs. — 1994-08-28