Offset
The time difference between Athens and Osaka is 6 hours.
Athens (EEST) is behind Osaka (JST).
EEST: UTC+3
JST: UTC+9
Athens is currently observing daylight saving time; Osaka is not.
When to schedule
Business-hours overlap: 9 AM–11 AM in Athens (3 PM–5 PM in Osaka).
Both teams are in working hours during this window on weekdays.
Suggested time: 10:00 AM Athens (4:00 PM Osaka).
This window may shift by an hour during daylight saving time.
Public holidays in 2026
National public holidays can affect availability — a counterpart is likely off work on their own holidays, so it's worth planning meetings and deadlines around them.
Greece
- New Year's DayThu, Jan 1
- EpiphanyTue, Jan 6
- Clean MondayMon, Feb 23
- AnnunciationWed, Mar 25
- Independence DayWed, Mar 25
- Good FridayFri, Apr 10
- Easter SundaySun, Apr 12
- Easter MondayMon, Apr 13
- Labour DayFri, May 1
- PentecostSun, May 31
- Whit MondayMon, Jun 1
- Assumption DaySat, Aug 15
- Ochi DayWed, Oct 28
- Christmas DayFri, Dec 25
- St. Stephen's DaySat, Dec 26
Japan
- New Year's DayThu, Jan 1
- Coming of Age DayMon, Jan 12
- Foundation DayWed, Feb 11
- The Emperor's BirthdayMon, Feb 23
- Vernal Equinox DayFri, Mar 20
- Shōwa DayWed, Apr 29
- Constitution Memorial DayWed, May 6
- Greenery DayMon, May 4
- Children's DayTue, May 5
- Marine DayMon, Jul 20
- Mountain DayTue, Aug 11
- Respect for the Aged DayMon, Sep 21
- Autumnal Equinox DayWed, Sep 23
- Sports DayMon, Oct 12
- Culture DayTue, Nov 3
- Labour Thanksgiving DayMon, Nov 23
About these zones
Quick reference
Full 24-hour conversion table — tap any time to open it in the converter.
| Athens | Osaka | Day |
|---|---|---|
| 12:00 am | 6:00 am | Same day |
| 1:00 am | 7:00 am | Same day |
| 2:00 am | 8:00 am | Same day |
| 3:00 am | 9:00 am | Same day |
| 4:00 am | 10:00 am | Same day |
| 5:00 am | 11:00 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 |
| 10:00 am | 4:00 pm | Same day |
| 11:00 am | 5:00 pm | Same day |
| 12:00 pm | 6:00 pm | Same day |
| 1:00 pm | 7:00 pm | Same day |
| 2:00 pm | 8:00 pm | Same day |
| 3:00 pm | 9:00 pm | Same day |
| 4:00 pm | 10:00 pm | Same day |
| 5:00 pm | 11:00 pm | Same day |
| 6:00 pm | 12:00 am | +1 day |
| 7:00 pm | 1:00 am | +1 day |
| 8:00 pm | 2:00 am | +1 day |
| 9:00 pm | 3:00 am | +1 day |
| 10:00 pm | 4:00 am | +1 day |
| 11:00 pm | 5:00 am | +1 day |
Daylight saving time
Athens observes daylight saving time; Osaka does not. The offset between the two zones changes when Athens transitions: on Sunday, October 25, 2026, clocks fall back from EEST to EET.
See the daylight saving time page for transition dates across every time zone.
Daylight today
- Sunrise
- 6:03 AM
- Sunset
- 8:47 PM
- Day length
- 14h 43m
- Sunrise
- 4:46 AM
- Sunset
- 7:10 PM
- Day length
- 14h 25m
Daylight overlap: 7h 7m — 6:03 AM–1:10 PM in Athens (12:03 PM–7:10 PM in Osaka). Both locations are in daylight during this window.
Cities in these zones
Other cities in Japan Standard Time
Browse all cities to see the current local time anywhere.
Airports in these zones
Airports in Eastern European Time
- ATH
Airports in Japan Standard Time
- HND
- NRT
- ITM
- KIX
- UKB
- NGO
- NKM
- CTS
- OKD
- FUK
Related conversions
Common conversions
- What is 9:00 am Athens in Osaka?
- 9:00 am Athens is 3:00 pm Osaka.
- What is 12:00 pm Athens in Osaka?
- 12:00 pm Athens is 6:00 pm Osaka.
- What is 12:30 pm Athens in Osaka?
- 12:30 pm Athens is 6:30 pm Osaka.
- What is 2:00 pm Athens in Osaka?
- 2:00 pm Athens is 8:00 pm Osaka.
- What is 5:00 pm Athens in Osaka?
- 5:00 pm Athens is 11:00 pm Osaka.
- What is 11:30 pm Athens in Osaka?
- 11:30 pm Athens is 5:30 am Osaka, the next day.