Setting UTC millis of DST transition then time zone results in wrong DST state

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Code

            console.log("\n\nTesting timezone-js transition millis...\n");
            dt = new timezoneJS.Date(1162112399999);
            dt.setTimezone("America/Los_Angeles");
            console.log("1ms Before transition time: " + dt.toString("EEE, dd MMM yyyy HH:mm:ss Z"));
            dt = new timezoneJS.Date(1162112400000);
            dt.setTimezone("America/Los_Angeles");
            console.log("At transition time: " + dt.toString("EEE, dd MMM yyyy HH:mm:ss Z"));

Output

Testing timezone-js transition millis... 1ms Before transition time: Sun, 29 Oct 2006 01:59:59 PDT At transition time: Sun, 29 Oct 2006 01:00:00 PDT

Result

Timezone-JS seems to have the right offset, but it still outputs PDT instead of PST