GMT + 9 hours
Electricity supply in Japan is 100 volts, unlike the United States (110-120V) or Europe and much of the rest of the world (220-240V).
The electric current in eastern Japan (from Yokohama and Tokyo up towards Hokkaido) is 50 Hertz, and in western Japan (Nagoya, Osaka, Okayama, down towards Kyushu and Okinawa) is 60 Hertz.
The Japanese plug and socket are Type A: parallel flat two-pin (JIS C 8303, Class II), almost identical to the United States' standard plug and socket (NEMA 115 ).
Japan country code : +81
Most hotels offer high-speed internet connections.