Tbilisi to Viana do Castelo: time difference
Viana do Castelo is 3 h behind Tbilisi. Live clocks for both, the working hours they share, and how each one sits against your own time.
🇵🇹 Viana do Castelo, Portugal
42
- Western European Summer Time
- UTC+1
- Night
☀️ 07:50 · 🌙 18:53 · 11 h 3 min
−3 h
Your time
One day, 2 clocks
Drag along the band to read any hour in every place at once.
Tbilisi 00:07 12:07 AM Viana do Castelo 21:07 9:07 PM You –:–
00:07 12:07 AM
Georgia Standard Time · UTC+4
☀️ 07:15 · 🌙 18:18
21:07 9:07 PM
Western European Summer Time · UTC+1
☀️ 07:50 · 🌙 18:53
·
−3 h
Viana do Castelo is 3 h behind Tbilisi.
When you, Tbilisi and Viana do Castelo are all at the desk
Pick the working hours below – the window every location shares appears once your time zone is known.
Working hours
🇬🇪 Tbilisi
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
🇵🇹 Viana do Castelo
21 9 PM 22 10 PM 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
📍 Your time
- Asleep
- Early
- Working hours
- Evening
- Both working
- Right now
Time zones side by side
| Detail | 🇬🇪 Tbilisi | 🇵🇹 Viana do Castelo |
|---|---|---|
| Local time | 00:07 | 21:07 |
| Local date | Sunday, October 18, 2026 | Saturday, October 17, 2026 |
| Time zone | Georgia Standard Time | Western European Summer Time |
| UTC offset | UTC+4 | UTC+1 |
| Offset from Tbilisi | — | −3 h |
| IANA zone | Asia/Tbilisi | Europe/Lisbon |
| Daylight saving | Not observed | On summer time → UTC+0, Oct 25, 01:00 |
| Sunrise | 07:15 | 07:50 |
| Sunset | 18:18 | 18:53 |
| Daylight | 11 h 3 min | 11 h 3 min |
| People on this clock | 1,241,700 | 85,784 |
Compare Tbilisi with another city
More comparisons with Tbilisi: the time zones next to it and the far side of the clock.
Big time differences
Tbilisi and Viana do Castelo: common questions
What is the time difference between Tbilisi and Viana do Castelo?
Viana do Castelo is 3 hours behind: it uses UTC+1, while Tbilisi is on UTC+4.
What time is it in Viana do Castelo at the start of the working day in Tbilisi?
The working day in Tbilisi starts at 9:00 AM; in Viana do Castelo it is 6:00 AM at that moment.
If it is 6:00 PM in Tbilisi, what time is it in Viana do Castelo?
At 6:00 PM in Tbilisi, clocks in Viana do Castelo show 3:00 PM.
Is there a time when both Tbilisi and Viana do Castelo are at work?
Yes: from 12:00 PM to 6:00 PM in Tbilisi (9:00 AM to 3:00 PM in Viana do Castelo), the working days (9:00 AM–6:00 PM) overlap.
When does the date change in Viana do Castelo compared with Tbilisi?
The new day starts in Viana do Castelo later: until 3:00 AM in Tbilisi, it is still the previous day there. From 9:00 PM in Viana do Castelo, Tbilisi is already on the next day.
Does the time difference between Tbilisi and Viana do Castelo change?
Yes. The clocks change only in Viana do Castelo. From October 25, 2026, Viana do Castelo will be 4 hours behind Tbilisi.
