Kotka to Tbilisi: time difference
Tbilisi is 1 h ahead of Kotka. Live clocks for both, the working hours they share, and how each one sits against your own time.
Your time
One day, 2 clocks
Drag along the band to read any hour in every place at once.
Kotka 08:28 8:28 AM Tbilisi 09:28 9:28 AM You –:–
08:28 8:28 AM
Eastern European Summer Time · UTC+3
☀️ 08:00 · 🌙 17:56
09:28 9:28 AM
Georgia Standard Time · UTC+4
☀️ 07:16 · 🌙 18:17
·
+1 h
Tbilisi is 1 h ahead of Kotka.
When you, Kotka and Tbilisi are all at the desk
Pick the working hours below – the window every location shares appears once your time zone is known.
Working hours
🇫🇮 Kotka
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
🇬🇪 Tbilisi
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 | 🇫🇮 Kotka | 🇬🇪 Tbilisi |
|---|---|---|
| Local time | 08:28 | 09:28 |
| Local date | Sunday, October 18, 2026 | Sunday, October 18, 2026 |
| Time zone | Eastern European Summer Time | Georgia Standard Time |
| UTC offset | UTC+3 | UTC+4 |
| Offset from Kotka | — | +1 h |
| IANA zone | Europe/Helsinki | Asia/Tbilisi |
| Daylight saving | On summer time → UTC+2, Oct 25, 03:00 | Not observed |
| Sunrise | 08:00 | 07:16 |
| Sunset | 17:56 | 18:17 |
| Daylight | 9 h 56 min | 11 h |
| People on this clock | 50,488 | 1,241,700 |
Compare Kotka with another city
More comparisons with Kotka: the time zones next to it and the far side of the clock.
Big time differences
Kotka and Tbilisi: common questions
How far ahead of Kotka is Tbilisi?
Tbilisi is 1 hour ahead of Kotka: UTC+4 against UTC+3.
What time is it in Tbilisi at the start of the working day in Kotka?
The working day in Kotka starts at 9:00 AM; in Tbilisi it is 10:00 AM at that moment.
What time is it in Tbilisi at the end of the working day in Kotka?
The working day in Kotka ends at 6:00 PM; in Tbilisi it is 7:00 PM at that moment.
When is a good time to call Tbilisi from Kotka?
Between 9:00 AM and 5:00 PM in Kotka – that is 10:00 AM to 6:00 PM in Tbilisi – both places are within working hours (9:00 AM–6:00 PM).
When does the date change in Tbilisi compared with Kotka?
The new day starts in Tbilisi earlier: at 11:00 PM in Kotka it is already midnight there. Until 1:00 AM in Tbilisi, Kotka is still on the previous day.
Does the time difference between Kotka and Tbilisi change?
Yes. The clocks change only in Kotka. From October 25, 2026, Tbilisi will be 2 hours ahead of Kotka.
