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.

SGT to Osaka

+1h

SGT

SGTSOURCE

UTC+08:00

HH12

MM00

12:00 (24-hr)

12 AM6 AM12 PM6 PM12 AM

Osaka

JST

Japan · UTC+09:00

HH01

MM00

13:00 (24-hr)

12 AM6 AM12 PM6 PM12 AM

Quick Reference

Time Conversion Table

SGT

Osaka

12:00 AM

1:00 AM

2:00 AM

3:00 AM

4:00 AM

5:00 AM

6:00 AM

7:00 AM

8:00 AM

9:00 AM

10:00 AM

11:00 AM

12:00 PM

1:00 PM

2:00 PM

3:00 PM

4:00 PM

5:00 PM

6:00 PM

7:00 PM

8:00 PM

9:00 PM

10:00 PM

11:00 PM

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

SGT and JST on the World Map

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

SGT Zone

→

JST Zone

Explore all world timezones interactively →

SGT – Singapore Standard Time

UTC+08:00

Singapore Standard Time (SGT) is the time zone for Singapore, 8 hours ahead of UTC.

Countries in SGT

Singapore

Major Cities in SGT

Singapore

Key Facts about SGT

•Singapore uses UTC+08:00 despite being at about 104°E longitude (closer to UTC+07:00).
•Singapore does not observe daylight saving time.
•The Singapore Exchange (SGX) operates on SGT.

Daylight Saving:No – UTC+08:00 year-round

Learn more about SGT on Wikipedia

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

About Osaka

Wikipedia

Osaka operates on Japan Standard Time (JST), UTC+9. As Japan's second economic center and a manufacturing hub, Osaka shares business hours with Tokyo.

Population:2.8 million

Metro:19 million

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

Currency:JPY (¥)

Stock Exchange:OSE (Osaka Exchange - derivatives)

Key Landmarks

Osaka CastleDotonboriUniversal Studios JapanShitennoji TempleUmeda Sky Building

Did You Know?

Osaka Castle was originally built in 1583 and has been rebuilt several times.

Learn more about JST timezone →

Comparing Time Zones: SGT and Osaka

SGT runs on Singapore Standard Time (SGT) at UTC+08:00. Osaka runs on Japan Standard Time (JST) at UTC+09:00. That puts SGT 1 hour ahead of Osaka — a difference of +1h at the current offsets.

In practice, when it is 9:00 AM in SGT it is 10:00 AM in Osaka. Midnight in SGT is 1:00 AM in Osaka. Neither zone observes daylight saving time, so the offset between them stays constant all year.

SGT to Osaka time conversion table

SGT (SGT)	Osaka (JST)	Day
12:00 AM	1:00 AM	same day
6:00 AM	7:00 AM	same day
7:00 AM	8:00 AM	same day
8:00 AM	9:00 AM	same day
9:00 AM	10:00 AM	same day
12:00 PM	1:00 PM	same day
3:00 PM	4:00 PM	same day
5:00 PM	6:00 PM	same day
6:00 PM	7:00 PM	same day
9:00 PM	10:00 PM	same day

Why people convert SGT to Osaka time

Scheduling a call from SGT to Osaka: a 10:00 AM start in SGT lands at 11:00 AM in Osaka, so you can confirm the slot without doing the arithmetic yourself.
Finding shared working hours: both SGT and Osaka are inside the 9-to-5 working day between 9:00 AM and 4:00 PM SGT time (10:00 AM–5:00 PM JST). That is roughly 7 hours of usable overlap.
Coordinating a SGT-based team with Osaka contacts: quoting times in the other side's local clock — not your own — removes the single biggest source of missed meetings.

Always state the zone abbreviation, not just the hour. "3:00 PM SGT" is unambiguous; "3 PM" across a +1h gap is not.
Block 9:00 AM–4:00 PM SGT as the recurring meeting window if you work primarily from SGT and need Osaka colleagues present.

About SGT (Singapore Standard Time)

Singapore Standard Time (SGT) is used in Singapore year-round. Singapore does not observe daylight saving time. Despite being geographically close to the UTC+07:00 zone, Singapore uses UTC+08:00 to align with major trading partners like China, Hong Kong, and Malaysia. Singapore is a major global financial hub.

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.

Best time to call between SGT and Osaka

Both SGT and Osaka sit inside the 9 AM – 5 PM working day between 9:00 AM–4:00 PM SGT, which is 10:00 AM–5:00 PM JST. That gives roughly 7 hours of shared time — the safest window for a live call or meeting.

Business hours overlap

SGT and Osaka share 7 hours of working-hours overlap (9:00 AM–4:00 PM SGT), so scheduling a live meeting is straightforward.

SGT is 1 hour ahead of Osaka (SGT UTC+08:00 → JST UTC+09:00). The shared working window is 9:00 AM–4:00 PM SGT. Remember to re-check around daylight-saving transitions.

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 SGT and Osaka?

SGT (SGT, UTC+08:00) is 1 hour ahead of Osaka (JST, UTC+09:00). The gap is currently +1h.

How do I convert SGT time to Osaka time?

Add +1h to SGT local time. For example, 9:00 AM in SGT is 10:00 AM in Osaka.

What time is it in Osaka right now?

Osaka uses JST at UTC+09:00. Use the live converter at the top of this page — it updates in real time and already accounts for the +1h offset from SGT.

What is the best time to call Osaka from SGT?

Call between 9:00 AM and 4:00 PM SGT — that maps to 10:00 AM–5:00 PM JST and keeps both parties inside the working day.

Which is ahead, SGT or Osaka?

SGT is 1 hour ahead of Osaka. When it is 12:00 PM in SGT it is 1:00 PM in Osaka.

Do SGT and Osaka use different time zones?

SGT uses SGT at UTC+08:00, while Osaka (Japan) uses JST at UTC+09:00. The IANA identifiers are Asia/Singapore and Asia/Tokyo.

Does daylight saving time affect the SGT–Osaka difference?

Neither zone observes daylight saving time, so the +1h offset between SGT and Osaka is fixed all year.

Which other cities share SGT's time zone?

SGT also covers Singapore.

Which countries use SGT, SGT's zone?

SGT is used in Singapore.

Is there a day difference between SGT and Osaka?

Not normally. The +1h gap only pushes the date over for late-evening times.

What is the time difference between SGT and Osaka?

Osaka is +1h from SGT.

What timezone is SGT in?

SGT operates on its local timezone.

What timezone is Osaka in?

Osaka operates on Japan Standard Time (JST), UTC+9. As Japan's second economic center and a manufacturing hub, Osaka shares business hours with Tokyo.