Backup diff of SummerTime(No. 5)

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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)
- 5 (2018-08-14 (Tue) 21:49:22)
- 6 (2019-04-11 (Thu) 10:55:03)
- 7 (2023-07-31 (Mon) 00:15:35)

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-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/


- サマータイム実施は不可能である
--  https://www.slideshare.net/tetsutalow/ss-109290879

- 日本の法令における「一日」と「二十四時間」（yasuokaの日記
--  https://getnews.jp/archives/2067925

Backup diff of SummerTime (No. 5)