Tbilisi to Slough: time difference
Slough is 3 h behind Tbilisi. Live clocks for both, the working hours they share, and how each one sits against your own time.
−3 h
Your time
One day, 2 clocks
Drag along the band to read any hour in every place at once.
Tbilisi 18:28 6:28 PM Slough 15:28 3:28 PM You –:–
18:28 6:28 PM
Georgia Standard Time · UTC+4
☀️ 07:18 · 🌙 18:15
15:28 3:28 PM
British Summer Time · UTC+1
☀️ 07:33 · 🌙 18:03
·
−3 h
Slough is 3 h behind Tbilisi.
When you, Tbilisi and Slough 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
🇬🇧 Slough
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
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Time zones side by side
| Detail | 🇬🇪 Tbilisi | 🇬🇧 Slough |
|---|---|---|
| Local time | 18:28 | 15:28 |
| Local date | Monday, October 19, 2026 | Monday, October 19, 2026 |
| Time zone | Georgia Standard Time | British Summer Time |
| UTC offset | UTC+4 | UTC+1 |
| Offset from Tbilisi | — | −3 h |
| IANA zone | Asia/Tbilisi | Europe/London |
| Daylight saving | Not observed | On summer time → UTC+0, Oct 25, 01:00 |
| Sunrise | 07:18 | 07:33 |
| Sunset | 18:15 | 18:03 |
| Daylight | 10 h 58 min | 10 h 29 min |
| People on this clock | 1,241,700 | 164,455 |
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 Slough: common questions
How far behind Tbilisi is Slough?
Slough is 3 hours behind Tbilisi: UTC+1 against UTC+4.
What time is it in Slough at the start of the working day in Tbilisi?
The working day in Tbilisi starts at 9:00 AM; in Slough it is 6:00 AM at that moment.
What time is it in Slough when it is 6:00 PM in Tbilisi?
When it is 6:00 PM in Tbilisi, it is 3:00 PM in Slough.
When do working hours in Tbilisi and in Slough overlap?
Working hours (9:00 AM–6:00 PM) overlap from 12:00 PM to 6:00 PM in Tbilisi, which is 9:00 AM to 3:00 PM in Slough.
When is it still the previous day in Slough?
Until 3:00 AM in Tbilisi it is still the previous day in Slough. The other way round, from 9:00 PM in Slough it is already the next day in Tbilisi.
Does the time difference between Tbilisi and Slough change?
Yes. The clocks change only in Slough. From October 25, 2026, Slough will be 4 hours behind Tbilisi.
