[tz] 1948-1951 Asia/Tokyo DST information

Phake Nick c933103 at gmail.com
Sat Sep 8 07:17:53 UTC 2018

It seems like the current info about past DST for Asia/Tokyo in tz database
is incorrect.
The law cited in the latest commit do say the DST en at 00:00 on the day
after the second Saturday in September, however the second line of the law
write that "the Second Saturday in September would have 25 hours in a day".

I was made aware of it by reading an interview on NICT (The National
Institute of Information and Communications Technology) of Japan and the
history of DST in Japan given in the interview by NICT representative do
said DST used to end at 25:00 there. See
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