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Edo Period Time Conversion (Fixed-Length Hours)

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Converts time expressions from Japan’s traditional fixed-length time system to modern time notation.
The fixed-length time system was used until the Muromachi period, but from the Edo period onward, it appears to have been a time system reserved exclusively for calendar scholars.
Fixed-length time subdivisions
There are various theories regarding the conversion to modern time, and the results may vary slightly depending on the specific historical period.

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Edo Period Time Conversion (Fixed-Length Hours) | Keisan