1.
standard time
The official time of a country or region, based on a specific time zone. Japan Standard Time (JST) is UTC+9.
Usage
Most commonly encountered in the phrase 日本標準時 (JST). Japan uses a single time zone for the entire country.
Common collocations
Cultural note
Japan does not observe daylight saving time. The country has used a single time zone (UTC+9) based on the 135th meridian since 1888.