Sofia to Guyancourt: time difference
Guyancourt 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 04:16 4:16 AM Guyancourt 03:16 3:16 AM You –:–
04:16 4:16 AM
Eastern European Summer Time · UTC+3
☀️ 07:47 · 🌙 18:37
03:16 3:16 AM
Central European Summer Time · UTC+2
☀️ 08:21 · 🌙 18:53
·
−1 h
Guyancourt is 1 h behind Sofia.
When you, Sofia and Guyancourt 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
🇫🇷 Guyancourt
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 | 🇫🇷 Guyancourt |
|---|---|---|
| Local time | 04:16 | 03:16 |
| Local date | Wednesday, October 21, 2026 | Wednesday, October 21, 2026 |
| Time zone | Eastern European Summer Time | Central European Summer Time |
| UTC offset | UTC+3 | UTC+2 |
| Offset from Sofia | — | −1 h |
| IANA zone | Europe/Sofia | Europe/Paris |
| Daylight saving | On summer time → UTC+2, Oct 25, 03:00 | On summer time → UTC+1, Oct 25, 02:00 |
| Sunrise | 07:47 | 08:21 |
| Sunset | 18:37 | 18:53 |
| Daylight | 10 h 50 min | 10 h 32 min |
| People on this clock | 1,286,383 | 29,406 |
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 Guyancourt: common questions
How far behind Sofia is Guyancourt?
Guyancourt is 1 hour behind Sofia: UTC+2 against UTC+3.
What time is it in Guyancourt at the start of the working day in Sofia?
The working day in Sofia starts at 9:00 AM; in Guyancourt it is 8:00 AM at that moment.
If it is 6:00 PM in Sofia, what time is it in Guyancourt?
At 6:00 PM in Sofia, clocks in Guyancourt show 5:00 PM.
Is there a time when both Sofia and Guyancourt are at work?
Yes: from 10:00 AM to 6:00 PM in Sofia (9:00 AM to 5:00 PM in Guyancourt), the working days (9:00 AM–6:00 PM) overlap.
Until what time in Sofia is it still yesterday in Guyancourt?
Before 1:00 AM in Sofia, the date in Guyancourt has not changed yet. From 11:00 PM in Guyancourt, it is already the next day in Sofia.
Does the time gap between Sofia and Guyancourt change during the year?
No – both places switch to and from summer time on the same dates, so the gap stays 1 hour.
