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  • 1 (2018-08-07 (Tue) 13:27:07)
  • 2 (2018-08-08 (Wed) 21:21:39)
  • 3 (2018-08-11 (Sat) 15:04:22)
  • 4 (2018-08-12 (Sun) 12:16:49)
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  • 6 (2019-04-11 (Thu) 10:55:03)
  • 7 (2023-07-31 (Mon) 00:15:35)

-サマータイム - 健康に与える影響 -
--  http://www.jssr.jp/data/pdf/summertime_20120315.pdf

- サマータイム問題を考える
--  http://lagoon100.web.fc2.com/st/

- サマータイムで日本中の電波時計がゴミになる(かも)という話
--  https://mzsm.me/2018/08/08/jjy-dst/