Portmarnock to Tbilisi: time difference
Tbilisi is 3 h ahead of Portmarnock. 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.
Portmarnock 13:31 1:31 PM Tbilisi 16:31 4:31 PM You –:–
13:31 1:31 PM
Irish Standard Time · UTC+1
☀️ 07:55 · 🌙 18:26
16:31 4:31 PM
Georgia Standard Time · UTC+4
☀️ 07:15 · 🌙 18:18
·
+3 h
Tbilisi is 3 h ahead of Portmarnock.
When you, Portmarnock 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
🇮🇪 Portmarnock
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
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 1 1 AM 2 2 AM
📍 Your time
- Asleep
- Early
- Working hours
- Evening
- Both working
- Right now
Time zones side by side
| Detail | 🇮🇪 Portmarnock | 🇬🇪 Tbilisi |
|---|---|---|
| Local time | 13:31 | 16:31 |
| Local date | Saturday, October 17, 2026 | Saturday, October 17, 2026 |
| Time zone | Irish Standard Time | Georgia Standard Time |
| UTC offset | UTC+1 | UTC+4 |
| Offset from Portmarnock | — | +3 h |
| IANA zone | Europe/Dublin | Asia/Tbilisi |
| Daylight saving | On summer time → UTC+0, Oct 25, 01:00 | Not observed |
| Sunrise | 07:55 | 07:15 |
| Sunset | 18:26 | 18:18 |
| Daylight | 10 h 31 min | 11 h 3 min |
| People on this clock | 9,285 | 1,241,700 |
Compare Portmarnock with another city
More comparisons with Portmarnock: the time zones next to it and the far side of the clock.
Big time differences
Portmarnock and Tbilisi: common questions
How many hours ahead of Portmarnock is Tbilisi?
The clocks in Tbilisi are 3 hours ahead of those in Portmarnock (UTC+4 and UTC+1).
If it is 9:00 AM in Portmarnock, what time is it in Tbilisi?
At 9:00 AM in Portmarnock, clocks in Tbilisi show 12:00 PM.
What time is it in Tbilisi at the end of the working day in Portmarnock?
The working day in Portmarnock ends at 6:00 PM; in Tbilisi it is 9:00 PM at that moment.
When do working hours in Portmarnock and in Tbilisi overlap?
Working hours (9:00 AM–6:00 PM) overlap from 9:00 AM to 3:00 PM in Portmarnock, which is 12:00 PM to 6:00 PM in Tbilisi.
When is it already the next day in Tbilisi?
From 9:00 PM in Portmarnock it is already the next day in Tbilisi. The other way round, until 3:00 AM in Tbilisi it is still the previous day in Portmarnock.
Does the time difference between Portmarnock and Tbilisi change?
Yes. The clocks change only in Portmarnock. From October 25, 2026, Tbilisi will be 4 hours ahead of Portmarnock.
