Tbilisi to Portmarnock: time difference
Portmarnock is 3 h behind Tbilisi. 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.
Tbilisi 19:39 7:39 PM Portmarnock 16:39 4:39 PM You –:–
19:39 7:39 PM
Georgia Standard Time · UTC+4
☀️ 07:15 · 🌙 18:18
16:39 4:39 PM
Irish Standard Time · UTC+1
☀️ 07:55 · 🌙 18:26
·
−3 h
Portmarnock is 3 h behind Tbilisi.
When you, Tbilisi and Portmarnock 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
🇮🇪 Portmarnock
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 | 🇮🇪 Portmarnock |
|---|---|---|
| Local time | 19:39 | 16:39 |
| Local date | Saturday, October 17, 2026 | Saturday, October 17, 2026 |
| Time zone | Georgia Standard Time | Irish Standard Time |
| UTC offset | UTC+4 | UTC+1 |
| Offset from Tbilisi | — | −3 h |
| IANA zone | Asia/Tbilisi | Europe/Dublin |
| Daylight saving | Not observed | On summer time → UTC+0, Oct 25, 01:00 |
| Sunrise | 07:15 | 07:55 |
| Sunset | 18:18 | 18:26 |
| Daylight | 11 h 3 min | 10 h 31 min |
| People on this clock | 1,241,700 | 9,285 |
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 Portmarnock: common questions
How far behind Tbilisi is Portmarnock?
Portmarnock is 3 hours behind Tbilisi: UTC+1 against UTC+4.
What time is it in Portmarnock when it is 9:00 AM in Tbilisi?
When it is 9:00 AM in Tbilisi, it is 6:00 AM in Portmarnock.
What time is it in Portmarnock at the end of the working day in Tbilisi?
The working day in Tbilisi ends at 6:00 PM; in Portmarnock it is 3:00 PM at that moment.
When do working hours in Tbilisi and in Portmarnock 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 Portmarnock.
When does the date change in Portmarnock compared with Tbilisi?
The new day starts in Portmarnock later: until 3:00 AM in Tbilisi, it is still the previous day there. From 9:00 PM in Portmarnock, Tbilisi is already on the next day.
Does the time difference between Tbilisi and Portmarnock change?
Yes. The clocks change only in Portmarnock. From October 25, 2026, Portmarnock will be 4 hours behind Tbilisi.
