YourWorldTime

UTC to JST

The gap between UTC and JST is 9 hours ahead — UTC+0 against UTC+9.

Convert a time

Converted time

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Hour by hour

Computed on a date when UTC is genuinely in force — using today would be wrong for half the year, because a standard-time abbreviation does not exist in summer.

UTCJST
00:0009:00
01:0010:00
02:0011:00
03:0012:00
04:0013:00
05:0014:00
06:0015:00
07:0016:00
08:0017:00
09:0018:00
10:0019:00
11:0020:00
12:0021:00
13:0022:00
14:0023:00
15:0000:00next day
16:0001:00next day
17:0002:00next day
18:0003:00next day
19:0004:00next day
20:0005:00next day
21:0006:00next day
22:0007:00next day
23:0008:00next day

What these abbreviations actually are

 UTCJST
Full nameCoordinated Universal TimeJapan Standard Time
Representative zoneUTCAsia/Tokyo
OffsetUTC+0UTC+9
SeasonalStandard timeStandard time
Zone changes in 202600
Other meaningsNone in common useNone in common use

Common questions

What is the difference between UTC and JST?
JST is 9 hours ahead of UTC. UTC means Coordinated Universal Time at UTC+0, and JST means Japan Standard Time at UTC+9.
Which time zone does this page use for UTC?
UTC. An abbreviation is not a time zone — it is a label a zone wears for part of the year — so every calculation here uses a named IANA zone and says which one. If you are writing code, use UTC rather than the string "UTC".
Is UTC a daylight saving abbreviation?
No. UTC is the standard-time abbreviation. When daylight saving is in force, the same zone uses a different one.