Romania to Osaka
+6hRomania
EESTSOURCEOsaka
JSTGreen rows indicate typical business hours (9 AM - 5 PM)
EEST and JST on the World Map
The map below highlights the EEST (Eastern European Time) and JST (Japan Standard Time) timezone regions across the globe.
EET – Eastern European Time
UTC+02:00Eastern European Time (EET) is used in Eastern Europe, the Middle East, and northeastern Africa, 2 hours ahead of UTC.
- •EET covers countries across three continents: Europe, Asia, and Africa.
- •Cairo is the most populous city in the EET zone.
- •Turkey used to be on EET but permanently moved to UTC+03:00 in 2016.
- •Finland, the Baltic states, and Greece all use EET.
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 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.
Time Conversion Guide: Romania to Osaka
Romania runs on Eastern European Summer Time (EEST) at UTC+03:00, currently observing daylight saving time. Osaka runs on Japan Standard Time (JST) at UTC+09:00. That puts Romania 6 hours ahead of Osaka — a difference of +6h at the current offsets.
In practice, when it is 9:00 AM in Romania it is 3:00 PM in Osaka. Midnight in Romania is 6:00 AM in Osaka.Romania observes daylight saving time while Osaka does not, so the gap narrows or widens by an hour part of the year.
Romania to Osaka time conversion table
| Romania (EEST) | Osaka (JST) | Day |
|---|---|---|
| 12:00 AM | 6:00 AM | same day |
| 6:00 AM | 12:00 PM | same day |
| 7:00 AM | 1:00 PM | same day |
| 8:00 AM | 2:00 PM | same day |
| 9:00 AM | 3:00 PM | same day |
| 12:00 PM | 6:00 PM | same day |
| 3:00 PM | 9:00 PM | same day |
| 5:00 PM | 11:00 PM | same day |
| 6:00 PM | 12:00 AM | next day |
| 9:00 PM | 3:00 AM | next day |
Why people convert Romania to Osaka time
- Scheduling a call from Romania to Osaka: a 10:00 AM start in Romania lands at 4:00 PM in Osaka, so you can confirm the slot without doing the arithmetic yourself.
- Finding shared working hours: both Romania and Osaka are inside the 9-to-5 working day between 9:00 AM and 11:00 AM EEST time (3:00 PM–5:00 PM JST). That is roughly 2 hours of usable overlap.
- Coordinating a Romania-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 EEST" is unambiguous; "3 PM" across a +6h gap is not.
- Block 9:00 AM–11:00 AM EEST as the recurring meeting window if you work primarily from Romania and need Osaka colleagues present.
- Romania: Clocks fall back on Sun, Oct 25, 2026. Re-check this page after that date because the offset changes and so does the +6h gap.
About EET (Eastern European Time)
Eastern European Time (EET) covers a wide geographical area including Eastern Europe (Finland, Greece, Romania, Bulgaria, Ukraine), the Middle East (Israel, Lebanon, Jordan), and northeastern Africa (Egypt, Libya). During summer, most EET countries switch to Eastern European Summer Time (EEST, UTC+03:00). Turkey permanently moved to UTC+03:00 in 2016, effectively leaving EET.
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 Romania and Osaka
Both Romania and Osaka sit inside the 9 AM – 5 PM working day between 9:00 AM–11:00 AM EEST, which is 3:00 PM–5:00 PM JST. That gives roughly 2 hours of shared time — the safest window for a live call or meeting.
Business hours overlap
Romania and Osaka overlap for about 2 hours during the working day — enough for meetings if you avoid the edges of the window.
Romania is 6 hours ahead of Osaka (EEST UTC+03:00 → JST UTC+09:00). The shared working window is 9:00 AM–11:00 AM EEST. Remember to re-check around daylight-saving transitions.
🕐 Daylight Saving Time Info
Romania
☀ Currently in DST
Standard: UTC+02:00 · DST: UTC+03:00
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 Romania and Osaka?
Romania (EEST, UTC+03:00) is 6 hours ahead of Osaka (JST, UTC+09:00). The gap is currently +6h.
How do I convert Romania time to Osaka time?
Add +6h to Romania local time. For example, 9:00 AM in Romania is 3:00 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 +6h offset from Romania.
What is the best time to call Osaka from Romania?
Call between 9:00 AM and 11:00 AM EEST — that maps to 3:00 PM–5:00 PM JST and keeps both parties inside the working day.
Which is ahead, Romania or Osaka?
Romania is 6 hours ahead of Osaka. When it is 12:00 PM in Romania it is 6:00 PM in Osaka.
Do Romania and Osaka use different time zones?
Romania (Romania) uses EEST at UTC+03:00, while Osaka (Japan) uses JST at UTC+09:00. The IANA identifiers are Europe/Bucharest and Asia/Tokyo.
Does daylight saving time affect the Romania–Osaka difference?
Yes at the moment: Romania is on daylight saving time and Osaka is not, so the +6h gap shifts by an hour when exactly one of them changes clocks.
Which other cities share Romania's time zone?
EEST also covers Cairo, Athens, Helsinki, Bucharest, Kyiv, Sofia, Jerusalem, Tel Aviv and 4 more.
Which countries use EEST, Romania's zone?
EEST is used in Finland, Greece, Romania, Bulgaria, Ukraine, Egypt, Israel, Lebanon and 9 more.
Is there a day difference between Romania and Osaka?
Not normally. The +6h gap only pushes the date over for late-evening times.
What is the time difference between Romania and Osaka?
Osaka is +6h from Romania.
What timezone is Romania in?
Romania 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.
What are the business hours in Osaka?
Standard business hours in Osaka are 9:00 AM - 6:00 PM JST.
Which countries use EET (Eastern European Time)?
EET is used in Finland, Greece, Romania, Bulgaria, Ukraine, Egypt, and 11 more countries.
Does EET observe daylight saving time?
Yes, EET switches to EEST during summer months.
What are some interesting facts about EET?
EET covers countries across three continents: Europe, Asia, and Africa. Cairo is the most populous city in the EET zone.
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 Romania, what time is it in Osaka?
When it is 12:00 AM (midnight) in Romania (EET), it is +6h later in Osaka (JST).
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