// |reftest| skip-if(!xulRuntime.shell) assertEq(/^(PST|PDT)$/.test(getTimeZone()), true, "The default time zone is set to PST8PDT for all jstests (when run in the shell)"); // U.S. daylight saving rules changed in 2007, excerpt from tzdata's // northamerica file: // NAME FROM TO IN ON AT SAVE LETTER/S // US 1967 2006 Oct lastSun 2:00 0 S // US 1967 1973 Apr lastSun 2:00 1:00 D // US 1974 only Jan 6 2:00 1:00 D // US 1975 only Feb 23 2:00 1:00 D // US 1976 1986 Apr lastSun 2:00 1:00 D // US 1987 2006 Apr Sun>=1 2:00 1:00 D // US 2007 max Mar Sun>=8 2:00 1:00 D // US 2007 max Nov Sun>=1 2:00 0 S // When 2040 is mapped to 1984, the old U.S. rules are applied, i.e. DST isn't // yet observed on March 31. If mapped to 2012, the new U.S. rules are applied // and DST is already observed, which is the expected behaviour. // A similar effect is visible in November. // NOTE: This test expects that 2012 and 2040 use the same DST rules. If this // ever changes, the test needs to be updated accordingly. { let dt1 = new Date(2040, Month.March, 31); assertDateTime(dt1, "Sat Mar 31 2040 00:00:00 GMT-0700 (PDT)", "Pacific Daylight Time"); let dt2 = new Date(2040, Month.November, 1); assertDateTime(dt2, "Thu Nov 01 2040 00:00:00 GMT-0700 (PDT)", "Pacific Daylight Time"); } // 2038 is mapped to 2027 instead of 1971. { let dt1 = new Date(2038, Month.March, 31); assertDateTime(dt1, "Wed Mar 31 2038 00:00:00 GMT-0700 (PDT)", "Pacific Daylight Time"); let dt2 = new Date(2038, Month.November, 1); assertDateTime(dt2, "Mon Nov 01 2038 00:00:00 GMT-0700 (PDT)", "Pacific Daylight Time"); } if (typeof reportCompare === "function") reportCompare(true, true);