Offset
The time difference between Osaka and Prague is 7 hours.
Osaka (JST) is ahead of Prague (GMT+2).
JST: UTC+9
GMT+2: UTC+2
Prague is currently observing daylight saving time; Osaka is not.
When to schedule
Business-hours overlap: 4 PM–5 PM in Osaka (9 AM–10 AM in Prague).
Both teams are in working hours during this window on weekdays.
Suggested time: 4:00 PM Osaka (9:00 AM Prague).
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.
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
Czechia
- New Year's DayThu, Jan 1
- Good FridayFri, Apr 3
- Easter MondayMon, Apr 6
- Labour DayFri, May 1
- Liberation DayFri, May 8
- Saints Cyril and Methodius DaySun, Jul 5
- Jan Hus DayMon, Jul 6
- St. Wenceslas DayMon, Sep 28
- Independent Czechoslovak State DayWed, Oct 28
- Struggle for Freedom and Democracy DayTue, Nov 17
- Christmas EveThu, Dec 24
- Christmas DayFri, Dec 25
- St. Stephen's DaySat, Dec 26
About these zones
Quick reference
Full 24-hour conversion table — tap any time to open it in the converter.
| Osaka | Prague | Day |
|---|---|---|
| 12:00 am | 5:00 pm | -1 day |
| 1:00 am | 6:00 pm | -1 day |
| 2:00 am | 7:00 pm | -1 day |
| 3:00 am | 8:00 pm | -1 day |
| 4:00 am | 9:00 pm | -1 day |
| 5:00 am | 10:00 pm | -1 day |
| 6:00 am | 11:00 pm | -1 day |
| 7:00 am | 12:00 am | Same day |
| 8:00 am | 1:00 am | Same day |
| 9:00 am | 2:00 am | Same day |
| 10:00 am | 3:00 am | Same day |
| 11:00 am | 4:00 am | Same day |
| 12:00 pm | 5:00 am | Same day |
| 1:00 pm | 6:00 am | Same day |
| 2:00 pm | 7:00 am | Same day |
| 3:00 pm | 8:00 am | Same day |
| 4:00 pm | 9:00 am | Same day |
| 5:00 pm | 10:00 am | Same day |
| 6:00 pm | 11:00 am | Same day |
| 7:00 pm | 12:00 pm | Same day |
| 8:00 pm | 1:00 pm | Same day |
| 9:00 pm | 2:00 pm | Same day |
| 10:00 pm | 3:00 pm | Same day |
| 11:00 pm | 4:00 pm | Same day |
Daylight saving time
Prague observes daylight saving time; Osaka does not. The offset between the two zones changes when Prague transitions: on Sunday, October 25, 2026, clocks fall back from GMT+2 to GMT+1.
See the daylight saving time page for transition dates across every time zone.
Daylight today
- Sunrise
- 4:46 AM
- Sunset
- 7:10 PM
- Day length
- 14h 25m
- Sunrise
- 4:55 AM
- Sunset
- 9:10 PM
- Day length
- 16h 15m
Daylight overlap: 7h 15m — 11:55 AM–7:10 PM in Osaka (4:55 AM–12:10 PM in Prague). 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 Japan Standard Time
- HND
- NRT
- ITM
- KIX
- UKB
- NGO
- NKM
- CTS
- OKD
- FUK
Airports in Central European Summer Time
- PRG
Related conversions
Common conversions
- What is 9:00 am Osaka in Prague?
- 9:00 am Osaka is 2:00 am Prague.
- What is 12:00 pm Osaka in Prague?
- 12:00 pm Osaka is 5:00 am Prague.
- What is 12:30 pm Osaka in Prague?
- 12:30 pm Osaka is 5:30 am Prague.
- What is 2:00 pm Osaka in Prague?
- 2:00 pm Osaka is 7:00 am Prague.
- What is 5:00 pm Osaka in Prague?
- 5:00 pm Osaka is 10:00 am Prague.
- What is 11:30 pm Osaka in Prague?
- 11:30 pm Osaka is 4:30 pm Prague.