Offset
There is no time difference between Sofia and Istanbul.
Sofia (EEST) is currently the same time as Istanbul (TRT).
EEST: UTC+3
TRT: UTC+3
Sofia is currently observing daylight saving time; Istanbul is not.
When to schedule
Business-hours overlap: 9 AM–5 PM in Sofia (9 AM–5 PM in Istanbul).
Both teams are in working hours during this window on weekdays.
Suggested time: 1:00 PM Sofia (1:00 PM Istanbul).
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.
Bulgaria
- New Year's DayThu, Jan 1
- Currency change dayFri, Jan 2
- Liberation DayTue, Mar 3
- Good FridayFri, Apr 10
- Holy SaturdaySat, Apr 11
- Easter SundaySun, Apr 12
- Easter MondayMon, Apr 13
- International Workers' DayFri, May 1
- Saint George's DayWed, May 6
- Saints Cyril and Methodius DayMon, May 25
- Unification DayMon, Sep 7
- Independence DayTue, Sep 22
- Christmas EveThu, Dec 24
- Christmas DayFri, Dec 25
- Second day of ChristmasSat, Dec 26
Turkey
- New Year's DayThu, Jan 1
- National Independence & Children's DayThu, Apr 23
- Labour DayFri, May 1
- Atatürk Commemoration & Youth DayTue, May 19
- Democracy and National Unity DayWed, Jul 15
- Victory DaySun, Aug 30
- Republic DayThu, Oct 29
About these zones
Quick reference
Full 24-hour conversion table — tap any time to open it in the converter.
| Sofia | Istanbul | Day |
|---|---|---|
| 12:00 am | 12:00 am | Same day |
| 1:00 am | 1:00 am | Same day |
| 2:00 am | 2:00 am | Same day |
| 3:00 am | 3:00 am | Same day |
| 4:00 am | 4:00 am | Same day |
| 5:00 am | 5:00 am | Same day |
| 6:00 am | 6:00 am | Same day |
| 7:00 am | 7:00 am | Same day |
| 8:00 am | 8:00 am | Same day |
| 9:00 am | 9:00 am | Same day |
| 10:00 am | 10:00 am | Same day |
| 11:00 am | 11:00 am | Same day |
| 12:00 pm | 12:00 pm | Same day |
| 1:00 pm | 1:00 pm | Same day |
| 2:00 pm | 2:00 pm | Same day |
| 3:00 pm | 3:00 pm | Same day |
| 4:00 pm | 4:00 pm | Same day |
| 5:00 pm | 5:00 pm | Same day |
| 6:00 pm | 6:00 pm | Same day |
| 7:00 pm | 7:00 pm | Same day |
| 8:00 pm | 8:00 pm | Same day |
| 9:00 pm | 9:00 pm | Same day |
| 10:00 pm | 10:00 pm | Same day |
| 11:00 pm | 11:00 pm | Same day |
Daylight saving time
Sofia observes daylight saving time; Istanbul does not. The offset between the two zones changes when Sofia 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
- 6:06 AM
- Sunset
- 9:01 PM
- Day length
- 14h 55m
- Sunrise
- 5:49 AM
- Sunset
- 8:34 PM
- Day length
- 14h 45m
Daylight overlap: 14h 28m — 6:06 AM–8:34 PM in Sofia (6:06 AM–8:34 PM in Istanbul). Both locations are in daylight during this window.
Cities in these zones
Other cities in Turkey Time
Browse all cities to see the current local time anywhere.
Airports in these zones
Airports in Eastern European Time
- SOF
Airports in Turkey Time
- IST
- SAW
- ESB
- YEI
- ADB
- GZT
- DIY
- ADA
- COV
- ASR
Related conversions
Common conversions
- What is 9:00 am Sofia in Istanbul?
- 9:00 am Sofia is 9:00 am Istanbul.
- What is 12:00 pm Sofia in Istanbul?
- 12:00 pm Sofia is 12:00 pm Istanbul.
- What is 12:30 pm Sofia in Istanbul?
- 12:30 pm Sofia is 12:30 pm Istanbul.
- What is 2:00 pm Sofia in Istanbul?
- 2:00 pm Sofia is 2:00 pm Istanbul.
- What is 5:00 pm Sofia in Istanbul?
- 5:00 pm Sofia is 5:00 pm Istanbul.
- What is 11:30 pm Sofia in Istanbul?
- 11:30 pm Sofia is 11:30 pm Istanbul.