Tbilisi to Foster City, CA: time difference
Foster City, CA is 11 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 11:35 11:35 AM Foster City, CA 00:35 12:35 AM You –:–
11:35 11:35 AM
Georgia Standard Time · UTC+4
☀️ 07:21 · 🌙 18:11
00:35 12:35 AM
Pacific Daylight Time · UTC-7
☀️ 07:24 · 🌙 18:25
·
−11 h
Foster City, CA is 11 h behind Tbilisi.
When you, Tbilisi and Foster City, CA 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
🇺🇸 Foster City, CA
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 9 9 AM 10 10 AM 11 11 AM 12 12 PM
📍 Your time
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Time zones side by side
| Detail | 🇬🇪 Tbilisi | 🇺🇸 Foster City, CA |
|---|---|---|
| Local time | 11:35 | 00:35 |
| Local date | Thursday, October 22, 2026 | Thursday, October 22, 2026 |
| Time zone | Georgia Standard Time | Pacific Daylight Time |
| UTC offset | UTC+4 | UTC-7 |
| Offset from Tbilisi | — | −11 h |
| IANA zone | Asia/Tbilisi | America/Los Angeles |
| Daylight saving | Not observed | On summer time → UTC-8, Nov 1, 01:00 |
| Sunrise | 07:21 | 07:24 |
| Sunset | 18:11 | 18:25 |
| Daylight | 10 h 50 min | 11 h 1 min |
| People on this clock | 1,241,700 | 30,567 |
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 Foster City, CA: common questions
How far behind Tbilisi is Foster City, CA?
Foster City is 11 hours behind Tbilisi: UTC−7 against UTC+4.
What time is it in Foster City, CA, at the start of the working day in Tbilisi?
The working day in Tbilisi starts at 9:00 AM; in Foster City it is 10:00 PM (the previous day) at that moment.
What time is it in Foster City, CA, at the end of the working day in Tbilisi?
The working day in Tbilisi ends at 6:00 PM; in Foster City it is 7:00 AM at that moment.
When do working hours in Tbilisi and in Foster City, CA, overlap?
They don't: there are no shared working hours. The start of the day in Tbilisi (9:00 AM) is 10:00 PM (the previous day) in Foster City, and the start of the day in Foster City is 8:00 PM in Tbilisi.
When is it still the previous day in Foster City, CA?
Until 11:00 AM in Tbilisi it is still the previous day in Foster City. The other way round, from 1:00 PM in Foster City it is already the next day in Tbilisi.
Is the time difference between Tbilisi and Foster City, CA, the same all year?
No. Only Foster City switches to summer time, so the gap changes twice a year. From November 1, 2026, Foster City will be 12 hours behind Tbilisi.
