🇨🇭 Olten, Switzerland
08
- Central European Summer Time
- UTC+2
- Daytime
☀️ 07:54 · 🌙 18:34 · 10 h 39 min
Olten to Sofia: time difference
Sofia is 1 h ahead of Olten. 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.
Olten 15:15 3:15 PM Sofia 16:15 4:15 PM You –:–
15:15 3:15 PM
Central European Summer Time · UTC+2
☀️ 07:54 · 🌙 18:34
16:15 4:15 PM
Eastern European Summer Time · UTC+3
☀️ 07:46 · 🌙 18:38
·
+1 h
Sofia is 1 h ahead of Olten.
When you, Olten and Sofia are all at the desk
Pick the working hours below – the window every location shares appears once your time zone is known.
Working hours
🇨🇭 Olten
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
🇧🇬 Sofia
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 0 12 AM
📍 Your time
- Asleep
- Early
- Working hours
- Evening
- Both working
- Right now
Time zones side by side
| Detail | 🇨🇭 Olten | 🇧🇬 Sofia |
|---|---|---|
| Local time | 15:15 | 16:15 |
| Local date | Tuesday, October 20, 2026 | Tuesday, October 20, 2026 |
| Time zone | Central European Summer Time | Eastern European Summer Time |
| UTC offset | UTC+2 | UTC+3 |
| Offset from Olten | — | +1 h |
| IANA zone | Europe/Zurich | Europe/Sofia |
| Daylight saving | On summer time → UTC+1, Oct 25, 02:00 | On summer time → UTC+2, Oct 25, 03:00 |
| Sunrise | 07:54 | 07:46 |
| Sunset | 18:34 | 18:38 |
| Daylight | 10 h 39 min | 10 h 52 min |
| People on this clock | 17,280 | 1,286,383 |
Compare Olten with another city
More comparisons with Olten: the time zones next to it and the far side of the clock.
Big time differences
Olten and Sofia: common questions
How many hours ahead of Olten is Sofia?
The clocks in Sofia are 1 hour ahead of those in Olten (UTC+3 and UTC+2).
If it is 9:00 AM in Olten, what time is it in Sofia?
At 9:00 AM in Olten, clocks in Sofia show 10:00 AM.
What time is it in Sofia when it is 6:00 PM in Olten?
When it is 6:00 PM in Olten, it is 7:00 PM in Sofia.
When do working hours in Olten and in Sofia overlap?
Working hours (9:00 AM–6:00 PM) overlap from 9:00 AM to 5:00 PM in Olten, which is 10:00 AM to 6:00 PM in Sofia.
When does the date change in Sofia compared with Olten?
The new day starts in Sofia earlier: at 11:00 PM in Olten it is already midnight there. Until 1:00 AM in Sofia, Olten is still on the previous day.
Does the time difference between Olten and Sofia change?
No. The clocks in Olten and in Sofia change on the same dates, so the difference stays 1 hour.
