Japan Standard Time (JST)
JST is UTC+9. Current Japan Standard Time and when JST applies.
Japan Standard Time now
--:--:--
Sunday, September 20, 2026
JSTUTC+9
JST does not change for daylight saving time
About JST
- Full Name
- Japan Standard Time
- Abbreviation
- JST
- UTC Offset
- UTC+9
- Japan Standard Time is on
- Standard Time (JST)
- Daylight Saving Time
- Not observed — JST is UTC+9 all year
Japan Standard Time (JST) is UTC+9 all year across the whole of Japan. Japan has not observed daylight saving time since 1951. JST shares its offset with Korea Standard Time.
Where JST is used
JST all year (no DST)
- All of Japan (Tokyo, Osaka, Nagoya, Sapporo, Fukuoka)
Major Cities in Japan Standard Time
Tokyo--:--JSTFukuoka--:--JSTHiroshima--:--JSTKobe--:--JSTKyoto--:--JSTNagoya--:--JSTOsaka--:--JSTSapporo--:--JSTSendai--:--JSTYokohama--:--JSTEach city shows its own current abbreviation, so places on daylight saving time are labelled accordingly.
JST vs Other Time Zones
| Comparison | By definition | Right now (local clocks) |
|---|---|---|
| JST to KST | Same time | Same time |
| JST to HKT | -1 hour | -1 hour |
| JST to AEST | +1 hour | +1 hour |
| JST to IST | -3 hours 30 minutes | -3 hours 30 minutes |
| JST to EST | -14 hours | -13 hours |
| JST to UTC | -9 hours | -9 hours |
“By definition” compares the fixed offsets of the abbreviations. “Right now” compares the actual local time in each region today, including daylight saving time.
JST converters
- IST to JSTIndia Standard Time → Japan Standard Time
- JST to ISTJapan Standard Time → India Standard Time
- EST to JSTEastern Standard Time → Japan Standard Time
- JST to ESTJapan Standard Time → Eastern Standard Time
- PST to JSTPacific Standard Time → Japan Standard Time
- JST to PSTJapan Standard Time → Pacific Standard Time
- GMT to JSTGreenwich Mean Time → Japan Standard Time
- JST to GMTJapan Standard Time → Greenwich Mean Time
- CET to JSTCentral European Time → Japan Standard Time
- JST to CETJapan Standard Time → Central European Time
- AEST to JSTAustralian Eastern Standard Time → Japan Standard Time
- JST to AESTJapan Standard Time → Australian Eastern Standard Time
JST FAQs
What is JST?
Japan Standard Time (JST) is UTC+9 all year across the whole of Japan. Japan has not observed daylight saving time since 1951. JST shares its offset with Korea Standard Time.
What is the UTC offset of JST?
JST is always UTC+9 and never changes for daylight saving time.
Does JST change for daylight saving time?
No. JST stays at UTC+9 all year. Its difference from places that do observe daylight saving time, such as US Eastern Time, changes when those places switch.
Where is JST used all year?
These places use UTC+9 all year without daylight saving time: All of Japan (Tokyo, Osaka, Nagoya, Sapporo, Fukuoka).