Why doesn’t Japan adopt permanent DST?

In the height of summer the sun rises at 4:20 am in Tokyo and sets around only 7pm. In winter it’s the opposite. That seems ridiculous as Japan is only a few degrees north of LA. Why doesn’t Japan adopt permanent DST, as Japan isn’t that large of a country. Do they want the sun to set early in summer because it’s too hot? Do they want people to go to work in the bright sun?

https://www.reddit.com/r/japan/comments/zfsq5i/why_doesnt_japan_adopt_permanent_dst/

7 comments
  1. Why adopt it? The lack of daylight saving time isn’t a problem, so why “fix” it? Japan, like California is really long, and the sun behaves differently at different latitudes. Why invite American’s DST clusterfuck by fixing a non-issue?

  2. That’s a conversation I had more than once with my colleagues.

    Nobody likes being stuck in the office until the sun goes down and the fact that most companies’ office hours is 10-19 rather than 9-18 or even 8-17 doesn’t help either. I have full flex wfh so I work from 5 to 12 during summer to have the whole afternoon for myself, my team is following a very similar schedule but most people don’t have this chance.

    Shifting the time by 2-3 hours to benefit from more exposure to sunlight would improve the general population’s mood but also improve the economy.

  3. My understanding is they keep their time zone shifted a bit earlier to make it easier to communicate with North America (their major trading partners) although I need some evidence to back up the claim.

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