O'Fallon, IL to Tbilisi: time difference
Tbilisi is 9 h ahead of O'Fallon, 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.
O'Fallon, IL 18:28 6:28 PM Tbilisi 03:28 3:28 AM You –:–
18:28 6:28 PM
Central Daylight Time · UTC-5
☀️ 07:15 · 🌙 18:15
03:28 3:28 AM
Georgia Standard Time · UTC+4
☀️ 07:21 · 🌙 18:11
·
+9 h
Tbilisi is 9 h ahead of O'Fallon, IL.
When you, O'Fallon, 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
🇺🇸 O'Fallon, 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 | 🇺🇸 O'Fallon, IL | 🇬🇪 Tbilisi |
|---|---|---|
| Local time | 18:28 | 03:28 |
| Local date | Wednesday, October 21, 2026 | Thursday, October 22, 2026 |
| Time zone | Central Daylight Time | Georgia Standard Time |
| UTC offset | UTC-5 | UTC+4 |
| Offset from O'Fallon, IL | — | +9 h |
| IANA zone | America/Chicago | Asia/Tbilisi |
| Daylight saving | On summer time → UTC-6, Nov 1, 01:00 | Not observed |
| Sunrise | 07:15 | 07:21 |
| Sunset | 18:15 | 18:11 |
| Daylight | 10 h 59 min | 10 h 50 min |
| People on this clock | 94,074 | 1,241,700 |
Compare O'Fallon, IL with another city
More comparisons with O'Fallon, IL: the time zones next to it and the far side of the clock.
Nearby time zones
Big time differences
O'Fallon, IL and Tbilisi: common questions
What is the time difference between O'Fallon, IL, and Tbilisi?
Tbilisi is 9 hours ahead: it uses UTC+4, while O'Fallon is on UTC−5.
What time is it in Tbilisi at the start of the working day in O'Fallon, IL?
The working day in O'Fallon starts at 9:00 AM; in Tbilisi it is 6:00 PM at that moment.
What time is it in Tbilisi when it is 6:00 PM in O'Fallon, IL?
When it is 6:00 PM in O'Fallon, it is 3:00 AM (the next day) in Tbilisi.
Is there a time when both O'Fallon, IL, and Tbilisi are at work?
No, the working days (9:00 AM–6:00 PM) do not overlap. When the day starts in O'Fallon at 9:00 AM, it is 6:00 PM in Tbilisi; the day in Tbilisi starts at 12:00 AM in O'Fallon time.
When is it already the next day in Tbilisi?
From 3:00 PM in O'Fallon, IL, it is already the next day in Tbilisi. The other way round, until 9:00 AM in Tbilisi it is still the previous day in O'Fallon.
Does the time difference between O'Fallon, IL, and Tbilisi change?
Yes. The clocks change only in O'Fallon. From November 1, 2026, Tbilisi will be 10 hours ahead of O'Fallon.
