Top 5 fundamental Japan travel tips are: 1. Time Difference Japan time zone as if set to GMT it is +9 hours. So it is 1 hour faster than most of the Asia countries. 2. Language Japanese is still the main language that widely use in Japan public, private and government body. A lot of younger generation people do speak English but they are speaking in Japanese mixing English term with very strong Japanese pronunciation flavor, so it is very strange or sounds funny when you first time hearing this. No worries, helpers or workers in tourist spots, hotels and restaurant are all well