Does it handle Daylight Saving Time?

Yes, the tool automatically adjusts for Daylight Saving Time based on the specific date you select, ensuring accurate conversions year-round.

Can I add multiple cities?

Yes, you can add as many cities as you need to the dashboard to compare times across your entire global network simultaneously.

Tokyo to NST

-12h 30m

Tokyo

JSTSOURCE

Japan · UTC+09:00

HH12

MM00

12:00 (24-hr)

12 AM6 AM12 PM6 PM12 AM

NST

UTC-02:30☀ DST active

HH11

MM30

(previous day)23:30 (24-hr)

12 AM6 AM12 PM6 PM12 AM

Quick Reference

Time Conversion Table

Tokyo

NST

12:00 AM

12:30 PM-1

2:00 AM

2:30 PM-1

4:00 AM

4:30 PM-1

6:00 AM

6:30 PM-1

8:00 AM

8:30 PM-1

10:00 AM

10:30 PM-1

12:00 PM

12:30 AM

2:00 PM

2:30 AM

4:00 PM

4:30 AM

6:00 PM

6:30 AM

8:00 PM

8:30 AM

10:00 PM

10:30 AM

Green rows indicate typical business hours (9 AM - 5 PM)

JST and NST on the World Map

The map below highlights the JST (Japan Standard Time) and NST (Newfoundland Standard Time) timezone regions across the globe.

JST Zone

→

NST Zone

Explore all world timezones interactively →

JST – Japan Standard Time

UTC+09:00

Japan Standard Time (JST) is the time zone for Japan, 9 hours ahead of UTC.

Countries in JST

Japan

Major Cities in JST

TokyoOsakaYokohamaNagoyaSapporoKyotoKobeFukuokaHiroshima

Key Facts about JST

•Japan does not observe daylight saving time.
•Tokyo is the most populous metropolitan area in the world.
•The Tokyo Stock Exchange operates from 9:00 AM to 3:00 PM JST.
•JST is 14 hours ahead of EST and 9 hours ahead of GMT.

Daylight Saving:No – UTC+09:00 year-round

Learn more about JST on Wikipedia

NST – Newfoundland Standard Time

UTC-03:30

Newfoundland Standard Time (NST) is a unique half-hour offset time zone in Canada, 3.5 hours behind UTC.

Countries in NST

Canada (Newfoundland)

Major Cities in NST

St. John'sCorner BrookMount Pearl

Key Facts about NST

•NST is one of only a few half-hour offset time zones in the world.
•Newfoundland joined Canada in 1949 and kept its unique time zone.
•St. John's is the easternmost city in North America.

Daylight Saving:Yes – switches to NDT

Learn more about NST on Wikipedia

About Tokyo

Wikipedia

Tokyo operates on Japan Standard Time (JST), which is 14 hours ahead of New York. As Asia's largest financial hub, Tokyo trading hours are crucial for global markets.

Population:14 million

Metro:37.4 million

Business Hours:9:00 AM - 6:00 PM JST

Currency:JPY (¥)

Stock Exchange:TSE (Tokyo Stock Exchange)

Key Landmarks

Tokyo TowerShibuya CrossingSenso-ji TempleImperial PalaceTokyo Skytree

Did You Know?

The Tokyo subway system moves approximately 8.7 million passengers daily.

Learn more about JST timezone →

Everything You Need to Know About Tokyo and NST Time

Tokyo runs on Japan Standard Time (JST) at UTC+09:00. NST runs on Newfoundland Standard Time (NST) at UTC-03:30. That puts Tokyo 12 hours 30 minutes behind NST — a difference of -12h 30m at the current offsets.

In practice, when it is 9:00 AM in Tokyo it is 8:30 PM in NST on the previous day. Midnight in Tokyo is 11:30 AM in NST. Neither zone observes daylight saving time, so the offset between them stays constant all year.

Tokyo to NST time conversion table

Tokyo (JST)	NST (NST)	Day
12:00 AM	11:30 AM	previous day
6:00 AM	5:30 PM	previous day
7:00 AM	6:30 PM	previous day
8:00 AM	7:30 PM	previous day
9:00 AM	8:30 PM	previous day
12:00 PM	11:30 PM	previous day
3:00 PM	2:30 AM	same day
5:00 PM	4:30 AM	same day
6:00 PM	5:30 AM	same day
9:00 PM	8:30 AM	same day

Why people convert Tokyo to NST time

Scheduling a call from Tokyo to NST: a 10:00 AM start in Tokyo lands at 9:30 PM in NST the previous day, so you can confirm the slot without doing the arithmetic yourself.
Handling a -12h 30m gap: Tokyo and NST have no overlap inside a normal 9-to-5 day, so real-time meetings need an early-morning or late-evening slot on one side. 9:00 AM in NST is 8:30 PM in Tokyo.
Keeping family and friends in sync: knowing that 8:00 PM in Tokyo is 7:30 AM in NST makes it easy to avoid calling at 3 AM.

Always state the zone abbreviation, not just the hour. "3:00 PM JST" is unambiguous; "3 PM" across a -12h 30m gap is not.
With a -12h 30m gap there is no shared 9-to-5 window, so alternate the early start: one week Tokyo takes the early slot, the next week NST does.

About JST (Japan Standard Time)

Japan Standard Time (JST) is the standard time zone for all of Japan. Japan does not observe daylight saving time. JST is 9 hours ahead of UTC and 14 hours ahead of EST. The Tokyo Stock Exchange, the world's third largest by market capitalization, operates on JST. South Korea uses the same offset (KST) but it is a distinct time zone.

About NST (Newfoundland Standard Time)

Newfoundland Standard Time (NST) is one of the few half-hour offset time zones in the world. It covers the island of Newfoundland in Canada and is 30 minutes ahead of Atlantic Standard Time. This unique offset exists because Newfoundland was an independent country until 1949.

Best time to call between Tokyo and NST

With a -12h 30m offset there is no overlap inside a normal 9 AM – 5 PM day. NST opens at 9:00 AM NST, which is 8:30 PM in Tokyo, so real-time calls need an early-morning or late-evening slot on one side.

Business hours overlap

Tokyo and NST have no shared working hours because of the -12h 30m gap. Teams need to alternate early starts or rely on asynchronous handovers.

Tokyo is 12 hours 30 minutes behind NST (JST UTC+09:00 → NST UTC-03:30). There is no shared 9-to-5 window, so plan around an early or late slot. Remember to re-check around daylight-saving transitions.

🕐 Daylight Saving Time Info

Tokyo

Does not observe DST

NST

☀ Currently in DST

Standard: UTC-03:30 · DST: UTC-02:30

Clocks fall back on Sun, Nov 1, 2026

Learn More About Time

Dive deeper into the fascinating world of timekeeping, time zones, and how they shape our global society:

⏳

History of Timekeeping

From sundials to atomic clocks - 5000 years of measuring time

🌍

How Time Zones Work

UTC, offsets, and why zones don't follow straight lines

☀️

Daylight Saving Time

DST dates, which countries observe it, and the ongoing debate

Frequently Asked Questions

What is the time difference between Tokyo and NST?

Tokyo (JST, UTC+09:00) is 12 hours 30 minutes behind NST (NST, UTC-03:30). The gap is currently -12h 30m.

How do I convert Tokyo time to NST time?

Add -12h 30m to Tokyo local time. For example, 9:00 AM in Tokyo is 8:30 PM in NST (previous day).

What time is it in NST right now?

NST uses NST at UTC-03:30. Use the live converter at the top of this page — it updates in real time and already accounts for the -12h 30m offset from Tokyo.

What is the best time to call NST from Tokyo?

There is no shared working-hours window because of the -12h 30m gap. The closest option is 1:00 PM in Tokyo, which is 12:30 AM in NST.

Which is behind, Tokyo or NST?

Tokyo is 12 hours 30 minutes behind NST. When it is 12:00 PM in Tokyo it is 11:30 PM in NST.

Do Tokyo and NST use different time zones?

Tokyo (Japan) uses JST at UTC+09:00, while NST uses NST at UTC-03:30. The IANA identifiers are Asia/Tokyo and America/St_Johns.

Does daylight saving time affect the Tokyo–NST difference?

Neither zone observes daylight saving time, so the -12h 30m offset between Tokyo and NST is fixed all year.

Which other cities share Tokyo's time zone?

JST also covers Tokyo, Osaka, Yokohama, Nagoya, Sapporo, Kyoto, Kobe, Fukuoka and 1 more.

Which countries use JST, Tokyo's zone?

JST is used in Japan.

Is there a day difference between Tokyo and NST?

Sometimes. The -12h 30m gap is large enough that 8:00 PM or later in Tokyo already falls on the in NST.

What is the time difference between Tokyo and NST?

NST is -12h 30m from Tokyo.

What timezone is Tokyo in?

Tokyo operates on Japan Standard Time (JST), which is 14 hours ahead of New York. As Asia's largest financial hub, Tokyo trading hours are crucial for global markets.