Correct a bug in the phase signal where the hour-based shifts of the
special 6-minute time & dst information did not occur.
Add new generated test cases of the 6-minute times to avoid regressions
According to Wikipedia, the ISO ordinal date format is "YYYY-DDD"
(or without the hyphen)
Update tests accordingly. The regeneration was automatic, by simply
writing out the test result instead of checking it.
