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years ago in Japan daylight and nighttime were each given 12 hours and clocks were made to adhere to this ... throughout the year as summer days grew longer and

years ago in Japan daylight and nighttime were each given 12 hours and clocks were made to adhere to this ... throughout the year as summer days grew longer and nighttime shorter their clocks adjusted to make an hour longer or shorter self adjusting

vunderba 6mo ago
TIL - this is very cool. It looks like somebody actually put together a wari-koma (temporal) watch in 2011 as well. https://www.masahirokikuno.jp/watches/temporal-hour-watch/ https://www.masahirokikuno.jp/watches/temporal-hour-watch/
- FinnKuhn 6mo ago
  If you want to look at some old ones the Seiko museum in Tokyo has a few. Entry is free and I can only recommend it.
  - vunderba 6mo ago
    Thanks for the tip! The wadokei clocks on the museum's site look incredible. https://museum.seiko.co.jp/en/collections/traditional_Japanese_clock https://museum.seiko.co.jp/en/collections/traditional_Japane...
- rendaw 6mo ago
  The non-fixed type system per https://ja.wikipedia.org/wiki/%E5%92%8C%E6%99%82%E8%A8%88 https://ja.wikipedia.org/wiki/%E5%92%8C%E6%99%82%E8%A8%88 was called "futei jihou" (non-fixed time system), same with other sites https://museum.seiko.co.jp/knowledge/relation_16/ https://museum.seiko.co.jp/knowledge/relation_16/ . "Temporal hour system" seems like the correct translation. My guess is that "wari koma" here means basically "separated panels" (wari: broken, koma: panel). Wadokei means (traditional) Japanese timepiece.
rendaw 6mo ago
Just double checking, but the day and night were each given 6 hours, not 12.