Prague to Osaka
+7hPrague
CESTSOURCEOsaka
JSTGreen rows indicate typical business hours (9 AM - 5 PM)
CEST and JST on the World Map
The map below highlights the CEST (Central European Time) and JST (Japan Standard Time) timezone regions across the globe.
CET – Central European Time
UTC+01:00Central European Time (CET) is used across most of Western and Central Europe, 1 hour ahead of UTC.
- •CET covers more European countries than any other time zone.
- •Spain uses CET despite being geographically aligned with GMT/WET.
- •The Frankfurt Stock Exchange, Euronext (Amsterdam/Paris), and Borsa Italiana operate on CET.
- •Over 500 million people live in the CET time zone.
- •France moved to CET during the German occupation in WWII and never switched back.
JST – Japan Standard Time
UTC+09:00Japan Standard Time (JST) is the time zone for Japan, 9 hours ahead of UTC.
- •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.
About Prague
WikipediaPrague operates on Central European Time (CET/CEST). As Central Europe's tourism and tech hub, Prague coordinates with major EU markets.
Czechia has the highest beer consumption per capita in the world.
About Osaka
WikipediaOsaka operates on Japan Standard Time (JST), UTC+9. As Japan's second economic center and a manufacturing hub, Osaka shares business hours with Tokyo.
Osaka Castle was originally built in 1583 and has been rebuilt several times.
Everything You Need to Know About Prague and Osaka Time
Prague runs on Central European Summer Time (CEST) at UTC+02:00, currently observing daylight saving time. Osaka runs on Japan Standard Time (JST) at UTC+09:00. That puts Prague 7 hours ahead of Osaka — a difference of +7h at the current offsets.
In practice, when it is 9:00 AM in Prague it is 4:00 PM in Osaka. Midnight in Prague is 7:00 AM in Osaka.Prague observes daylight saving time while Osaka does not, so the gap narrows or widens by an hour part of the year.
Prague to Osaka time conversion table
| Prague (CEST) | Osaka (JST) | Day |
|---|---|---|
| 12:00 AM | 7:00 AM | same day |
| 6:00 AM | 1:00 PM | same day |
| 7:00 AM | 2:00 PM | same day |
| 8:00 AM | 3:00 PM | same day |
| 9:00 AM | 4:00 PM | same day |
| 12:00 PM | 7:00 PM | same day |
| 3:00 PM | 10:00 PM | same day |
| 5:00 PM | 12:00 AM | next day |
| 6:00 PM | 1:00 AM | next day |
| 9:00 PM | 4:00 AM | next day |
Why people convert Prague to Osaka time
- Scheduling a call from Prague to Osaka: a 10:00 AM start in Prague lands at 5:00 PM in Osaka, so you can confirm the slot without doing the arithmetic yourself.
- Finding shared working hours: both Prague and Osaka are inside the 9-to-5 working day between 9:00 AM and 10:00 AM CEST time (4:00 PM–5:00 PM JST). That is roughly 1 hours of usable overlap.
- Coordinating a Prague-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 CEST" is unambiguous; "3 PM" across a +7h gap is not.
- Block 9:00 AM–10:00 AM CEST as the recurring meeting window if you work primarily from Prague and need Osaka colleagues present.
- Prague: Clocks fall back on Sun, Oct 25, 2026. Re-check this page after that date because the offset changes and so does the +7h gap.
About CET (Central European Time)
Central European Time (CET) is the standard time zone for most of Europe, covering over 30 countries from Spain to Poland, and from Norway to Italy. CET is 1 hour ahead of GMT and is used by the European Union's most populous nations. During summer, most CET countries switch to Central European Summer Time (CEST, UTC+02:00). Major European financial markets in Frankfurt, Paris, and Amsterdam operate on CET.
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 Prague and Osaka
Both Prague and Osaka sit inside the 9 AM – 5 PM working day between 9:00 AM–10:00 AM CEST, which is 4:00 PM–5:00 PM JST. That gives roughly 1 hours of shared time — the safest window for a live call or meeting.
Business hours overlap
Prague and Osaka overlap for only 60 minutes (9:00 AM–10:00 AM CEST), so meetings have to be booked precisely.
Prague is 7 hours ahead of Osaka (CEST UTC+02:00 → JST UTC+09:00). The shared working window is 9:00 AM–10:00 AM CEST. Remember to re-check around daylight-saving transitions.
🕐 Daylight Saving Time Info
Prague
☀ Currently in DST
Standard: UTC+01:00 · DST: UTC+02:00
Clocks fall back on Sun, Oct 25, 2026
Osaka
Does not observe DST
Learn More About Time
Dive deeper into the fascinating world of timekeeping, time zones, and how they shape our global society:
Frequently Asked Questions
What is the time difference between Prague and Osaka?
Prague (CEST, UTC+02:00) is 7 hours ahead of Osaka (JST, UTC+09:00). The gap is currently +7h.
How do I convert Prague time to Osaka time?
Add +7h to Prague local time. For example, 9:00 AM in Prague is 4:00 PM 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 +7h offset from Prague.
What is the best time to call Osaka from Prague?
Call between 9:00 AM and 10:00 AM CEST — that maps to 4:00 PM–5:00 PM JST and keeps both parties inside the working day.
Which is ahead, Prague or Osaka?
Prague is 7 hours ahead of Osaka. When it is 12:00 PM in Prague it is 7:00 PM in Osaka.
Do Prague and Osaka use different time zones?
Prague (Czechia) uses CEST at UTC+02:00, while Osaka (Japan) uses JST at UTC+09:00. The IANA identifiers are Europe/Prague and Asia/Tokyo.
Does daylight saving time affect the Prague–Osaka difference?
Yes at the moment: Prague is on daylight saving time and Osaka is not, so the +7h gap shifts by an hour when exactly one of them changes clocks.
Which other cities share Prague's time zone?
CEST also covers Paris, Berlin, Rome, Madrid, Amsterdam, Brussels, Vienna, Warsaw and 10 more.
Which countries use CEST, Prague's zone?
CEST is used in Germany, France, Italy, Spain, Netherlands, Belgium, Austria, Switzerland and 19 more.
Is there a day difference between Prague and Osaka?
Not normally. The +7h gap only pushes the date over for late-evening times.
What is the time difference between Prague and Osaka?
Osaka is +7h from Prague.
What timezone is Prague in?
Prague operates on Central European Time (CET/CEST). As Central Europe's tourism and tech hub, Prague coordinates with major EU markets.
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.
What are the business hours in Prague?
Standard business hours in Prague are 8:00 AM - 5:00 PM CET.
What are the business hours in Osaka?
Standard business hours in Osaka are 9:00 AM - 6:00 PM JST.
What is the best time to schedule a call between Prague and Osaka?
The best overlap for a call is when both cities are in business hours. Prague works 8:00 AM - 5:00 PM CET and Osaka works 9:00 AM - 6:00 PM JST (+7h difference). Try scheduling during the overlapping window for maximum convenience.
What currencies are used in Prague and Osaka?
Prague uses CZK (Kč) while Osaka uses JPY (¥). Check current exchange rates when planning travel or business between these cities.
How do Prague and Osaka compare in size?
Prague has a population of approximately 1.3 million (metro: 2.7 million), while Osaka has approximately 2.8 million (metro: 19 million).
What are the major landmarks in Prague and Osaka?
Prague is known for Prague Castle, Charles Bridge, Old Town Square. Osaka is famous for Osaka Castle, Dotonbori, Universal Studios Japan.
Do Prague and Osaka have stock exchanges?
Yes. Prague has the PSE (Prague Stock Exchange) and Osaka has the OSE (Osaka Exchange - derivatives). The +7h time difference affects trading hour overlaps between these exchanges.
Which countries use CET (Central European Time)?
CET is used in Germany, France, Italy, Spain, Netherlands, Belgium, and 21 more countries.
Does CET observe daylight saving time?
Yes, CET switches to CEST during summer months.
What are some interesting facts about CET?
CET covers more European countries than any other time zone. Spain uses CET despite being geographically aligned with GMT/WET.
Which cities are in the JST timezone?
Major cities in the JST timezone include Tokyo, Osaka, Yokohama, Nagoya, Sapporo, Kyoto, Kobe, Fukuoka.
What is the UTC offset for JST?
Japan Standard Time (JST) is at UTC+09:00.
What should I know about the JST timezone?
Japan does not observe daylight saving time. Tokyo is the most populous metropolitan area in the world.
When is it midnight in Prague, what time is it in Osaka?
When it is 12:00 AM (midnight) in Prague (CET), it is +7h later in Osaka (JST).
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