Alton, IL to Tbilisi: time difference
Tbilisi is 9 h ahead of Alton, IL. 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.
Alton, IL 13:31 1:31 PM Tbilisi 22:31 10:31 PM You –:–
13:31 1:31 PM
Central Daylight Time · UTC-5
☀️ 07:16 · 🌙 18:17
22:31 10:31 PM
Georgia Standard Time · UTC+4
☀️ 07:19 · 🌙 18:14
·
+9 h
Tbilisi is 9 h ahead of Alton, IL.
When you, Alton, IL 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
🇺🇸 Alton, IL
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
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 3 3 AM 4 4 AM 5 5 AM 6 6 AM 7 7 AM 8 8 AM
📍 Your time
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Time zones side by side
| Detail | 🇺🇸 Alton, IL | 🇬🇪 Tbilisi |
|---|---|---|
| Local time | 13:31 | 22:31 |
| Local date | Tuesday, October 20, 2026 | Tuesday, October 20, 2026 |
| Time zone | Central Daylight Time | Georgia Standard Time |
| UTC offset | UTC-5 | UTC+4 |
| Offset from Alton, IL | — | +9 h |
| IANA zone | America/Chicago | Asia/Tbilisi |
| Daylight saving | On summer time → UTC-6, Nov 1, 01:00 | Not observed |
| Sunrise | 07:16 | 07:19 |
| Sunset | 18:17 | 18:14 |
| Daylight | 11 h 1 min | 10 h 55 min |
| People on this clock | 25,676 | 1,241,700 |
Compare Alton, IL with another city
More comparisons with Alton, IL: the time zones next to it and the far side of the clock.
Nearby time zones
Big time differences
Alton, IL and Tbilisi: common questions
What is the time difference between Alton, IL, and Tbilisi?
Tbilisi is 9 hours ahead: it uses UTC+4, while Alton is on UTC−5.
What time is it in Tbilisi at the start of the working day in Alton, IL?
The working day in Alton starts at 9:00 AM; in Tbilisi it is 6:00 PM at that moment.
If it is 6:00 PM in Alton, IL, what time is it in Tbilisi?
At 6:00 PM in Alton, clocks in Tbilisi show 3:00 AM (the next day).
When do working hours in Alton, IL, and in Tbilisi overlap?
They don't: there are no shared working hours. The start of the day in Alton (9:00 AM) is 6:00 PM in Tbilisi, and the start of the day in Tbilisi is 12:00 AM in Alton.
When does the date change in Tbilisi compared with Alton, IL?
The new day starts in Tbilisi earlier: at 3:00 PM in Alton it is already midnight there. Until 9:00 AM in Tbilisi, Alton is still on the previous day.
Does the time difference between Alton, IL, and Tbilisi change?
Yes. The clocks change only in Alton. From November 1, 2026, Tbilisi will be 10 hours ahead of Alton.
