Sofia to Ozyorsk: time difference
Ozyorsk is 1 h behind Sofia. Live clocks for both, the working hours they share, and how each one sits against your own time.
−1 h
Your time
One day, 2 clocks
Drag along the band to read any hour in every place at once.
Sofia 10:27 10:27 AM Ozyorsk 09:27 9:27 AM You –:–
10:27 10:27 AM
Eastern European Summer Time · UTC+3
☀️ 07:34 · 🌙 18:55
09:27 9:27 AM
Eastern European Standard Time · UTC+2
☀️ 06:51 · 🌙 17:49
·
−1 h
Ozyorsk is 1 h behind Sofia.
When you, Sofia and Ozyorsk are all at the desk
Pick the working hours below – the window every location shares appears once your time zone is known.
Working hours
🇧🇬 Sofia
0 12 AM 1 1 AM 2 2 AM 3 3 AM 4 4 AM 5 5 AM 6 6 AM 7 7 AM 8 8 AM 9 9 AM 10 10 AM 11 11 AM 12 12 PM 13 1 PM 14 2 PM 15 3 PM 16 4 PM 17 5 PM 18 6 PM 19 7 PM 20 8 PM 21 9 PM 22 10 PM 23 11 PM
🇷🇺 Ozyorsk
23 11 PM 0 12 AM 1 1 AM 2 2 AM 3 3 AM 4 4 AM 5 5 AM 6 6 AM 7 7 AM 8 8 AM 9 9 AM 10 10 AM 11 11 AM 12 12 PM 13 1 PM 14 2 PM 15 3 PM 16 4 PM 17 5 PM 18 6 PM 19 7 PM 20 8 PM 21 9 PM 22 10 PM
📍 Your time
- Asleep
- Early
- Working hours
- Evening
- Both working
- Right now
Time zones side by side
| Detail | 🇧🇬 Sofia | 🇷🇺 Ozyorsk |
|---|---|---|
| Local time | 10:27 | 09:27 |
| Local date | Saturday, October 10, 2026 | Saturday, October 10, 2026 |
| Time zone | Eastern European Summer Time | Eastern European Standard Time |
| UTC offset | UTC+3 | UTC+2 |
| Offset from Sofia | — | −1 h |
| IANA zone | Europe/Sofia | Europe/Kaliningrad |
| Daylight saving | On summer time → UTC+2, Oct 25, 03:00 | Not observed |
| Sunrise | 07:34 | 06:51 |
| Sunset | 18:55 | 17:49 |
| Daylight | 11 h 20 min | 10 h 58 min |
| People on this clock | 1,286,383 | 4,500 |
Compare Sofia with another city
More comparisons with Sofia: the time zones next to it and the far side of the clock.
Big time differences
Sofia and Ozyorsk: common questions
How many hours behind Sofia is Ozyorsk?
The clocks in Ozyorsk are 1 hour behind those in Sofia (UTC+2 and UTC+3).
If it is 9:00 AM in Sofia, what time is it in Ozyorsk?
At 9:00 AM in Sofia, clocks in Ozyorsk show 8:00 AM.
What time is it in Ozyorsk at the end of the working day in Sofia?
The working day in Sofia ends at 6:00 PM; in Ozyorsk it is 5:00 PM at that moment.
Is there a time when both Sofia and Ozyorsk are at work?
Yes: from 10:00 AM to 6:00 PM in Sofia (9:00 AM to 5:00 PM in Ozyorsk), the working days (9:00 AM–6:00 PM) overlap.
When does the date change in Ozyorsk compared with Sofia?
The new day starts in Ozyorsk later: until 1:00 AM in Sofia, it is still the previous day there. From 11:00 PM in Ozyorsk, Sofia is already on the next day.
Does the time gap between Sofia and Ozyorsk change during the year?
Yes – daylight saving time is used in Sofia but not in Ozyorsk. From October 25, 2026, Ozyorsk and Sofia will have the same time.
