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UTC to JST Time Converter

Use this UTC to JST time converter to compare UTC and Japan time instantly. JST is 9 hours ahead of UTC, so 9:00 AM UTC becomes 6:00 PM JST and 5:00 PM UTC becomes 2:00 AM (next day) JST. The page is useful for business-hours overlap, international calls, remote-team handoffs, webinars, and travel planning, with daylight saving adjustments handled automatically.

UTC Coordinated Universal Time
...
JST Japan Standard Time
...
Select a time to convert

UTC to JST Quick Facts

Use this UTC to JST converter to compare Universal and Japan time, check the 9 hours gap, and confirm the right slot for calls, handoffs, and deadlines. Good overlap starts around 9:00 AM UTC / 6:00 PM JST.

Time Difference
Japan Standard Time is 9 hours ahead of Coordinated Universal Time
Useful when deadlines, handoffs, or calls cross workday boundaries.
Best Call Window
Best overlap starts around 9:00 AM UTC and 6:00 PM JST.
Common Use Cases
Useful for remote teams, customer support windows, travel planning, webinars, and same-day deadline handoffs.

How to Convert UTC to JST

Converting between Coordinated Universal Time and Japan Standard Time means accounting for a 9 hours gap — here's how to do it in under 10 seconds with no sign-up.

Enter Your UTC Time

Pick the date and time in Coordinated Universal Time (UTC +0) that you want to convert. Hit "Now" to load the current UTC time instantly, or use "+1h" to step forward and compare.

Read the JST Result

The equivalent Japan Standard Time (UTC +9) time appears immediately. Since JST is 9 hours ahead of UTC, most daytime conversions stay on the same calendar day.

Copy or Fine-Tune

Click "Copy Time" to grab the JST result for your calendar or message. Use "+1d" to check how the conversion shifts across dates — helpful for scheduling recurring Universal–Japan calls.

Why Choose Our UTC to JST Converter

Align UTC–JST Meetings Instantly

When someone in Universal suggests 9:00 AM UTC, that's 6:00 PM JST. This converter shows the overlap so both sides agree on one slot — no back-and-forth.

Spot Date-Line Shifts at a Glance

Late-night UTC times can land on a different date in JST because of the 9 hours offset. The converter labels "next day" or "previous day" next to the result so you never send a message a day early or miss a deadline.

Handles DST Transitions Automatically

Daylight Saving adjustments can widen or narrow the UTC–JST gap by an hour. During transition weeks many people get it wrong. This converter pulls the current UTC offsets automatically, so the result is right even on the changeover day.

Never Miss a UTC-Timed Event

Product launches, sports matches, and webinars are often announced in UTC. Convert the event time to JST so you know exactly when to tune in — with a 9 hours difference, a morning event in Universal falls during work hours in Japan.

UTC to JST Time Conversion Chart

Quick-reference conversion table covering every hour of the day at a glance.

Complete 24-Hour Conversion

Coordinated Universal Time to Japan Standard Time full day schedule

12:00 AM
UTC
→
9:00 AM
JST
1:00 AM
UTC
→
10:00 AM
JST
2:00 AM
UTC
→
11:00 AM
JST
3:00 AM
UTC
→
12:00 PM
JST
4:00 AM
UTC
→
1:00 PM
JST
5:00 AM
UTC
→
2:00 PM
JST
6:00 AM
UTC
→
3:00 PM
JST
7:00 AM
UTC
→
4:00 PM
JST
8:00 AM
UTC
→
5:00 PM
JST
9:00 AM
UTC
→
6:00 PM
JST
10:00 AM
UTC
→
7:00 PM
JST
11:00 AM
UTC
→
8:00 PM
JST
12:00 PM
UTC
→
9:00 PM
JST
1:00 PM
UTC
→
10:00 PM
JST
2:00 PM
UTC
→
11:00 PM
JST
3:00 PM
UTC
→
12:00 AM
JST
(next day)
4:00 PM
UTC
→
1:00 AM
JST
(next day)
5:00 PM
UTC
→
2:00 AM
JST
(next day)
6:00 PM
UTC
→
3:00 AM
JST
(next day)
7:00 PM
UTC
→
4:00 AM
JST
(next day)
8:00 PM
UTC
→
5:00 AM
JST
(next day)
9:00 PM
UTC
→
6:00 AM
JST
(next day)
10:00 PM
UTC
→
7:00 AM
JST
(next day)
11:00 PM
UTC
→
8:00 AM
JST
(next day)
The two zones in context

UTC vs JST — cities and working rhythm

UTC — Coordinated Universal Time
Primary cities: Reference clock — aviation, IT logs, science, distributed teams

UTC is the reference offset — not a civil timezone anywhere, but the standard for aviation ("Zulu time"), server logs, astronomy, and cross-timezone team calendars. When distributed engineering teams schedule "the daily standup at 15:00 UTC" they're dodging the DST-flip mess entirely.

JST — Japan Standard Time
Primary cities: Tokyo, Osaka, Sapporo, Nagoya, Fukuoka

Japan — one of the few large economies that has no DST, so JST is JST year-round (UTC+9). Business hours 9 AM – 6 PM JST with strong presence-based culture (staying past 7 PM is common). Same offset as Korean Standard Time (KST).

Time gap: JST is 9.0 hours ahead of UTC (standard-time offsets — daylight-saving flips shift this by an hour twice a year in most northern-hemisphere zones).

Popular UTC Time Converters

Explore more UTC conversions for major business and travel corridors. Each page includes a 24-hour chart, time difference summary, and meeting overlap guidance.

Convert Other Time Zones to JST

Find the time difference from any major zone into Japan Standard Time. Use these pages when scheduling with Japan from a different region.

🇯🇵 Swap direction — JST to UTC Converter