Keflavik to Austin, TX: time difference
Austin, TX is 5 h behind Keflavik. 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.
Keflavik 23:38 11:38 PM Austin, TX 18:38 6:38 PM You –:–
23:38 11:38 PM
Greenwich Mean Time · UTC+0
☀️ 08:29 · 🌙 18:03
18:38 6:38 PM
Central Daylight Time · UTC-5
☀️ 07:36 · 🌙 18:58
·
−5 h
Austin, TX is 5 h behind Keflavik.
When you, Keflavik and Austin, TX are all at the desk
Pick the working hours below – the window every location shares appears once your time zone is known.
Working hours
🇮🇸 Keflavik
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
🇺🇸 Austin, TX
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 13 1 PM 14 2 PM 15 3 PM 16 4 PM 17 5 PM 18 6 PM
📍 Your time
- Asleep
- Early
- Working hours
- Evening
- Both working
- Right now
Time zones side by side
| Detail | 🇮🇸 Keflavik | 🇺🇸 Austin, TX |
|---|---|---|
| Local time | 23:38 | 18:38 |
| Local date | Sunday, October 18, 2026 | Sunday, October 18, 2026 |
| Time zone | Greenwich Mean Time | Central Daylight Time |
| UTC offset | UTC+0 | UTC-5 |
| Offset from Keflavik | — | −5 h |
| IANA zone | Atlantic/Reykjavik | America/Chicago |
| Daylight saving | Not observed | On summer time → UTC-6, Nov 1, 01:00 |
| Sunrise | 08:29 | 07:36 |
| Sunset | 18:03 | 18:58 |
| Daylight | 9 h 34 min | 11 h 22 min |
| People on this clock | 15,000 | 974,447 |
Compare Keflavik with another city
More comparisons with Keflavik: the time zones next to it and the far side of the clock.
Big time differences
Keflavik and Austin, TX: common questions
How far behind Keflavik is Austin, TX?
Austin is 5 hours behind Keflavik: UTC−5 against UTC+0.
What time is it in Austin, TX, at the start of the working day in Keflavik?
The working day in Keflavik starts at 9:00 AM; in Austin it is 4:00 AM at that moment.
What time is it in Austin, TX, at the end of the working day in Keflavik?
The working day in Keflavik ends at 6:00 PM; in Austin it is 1:00 PM at that moment.
When is a good time to call Austin, TX, from Keflavik?
Between 2:00 PM and 6:00 PM in Keflavik – that is 9:00 AM to 1:00 PM in Austin – both places are within working hours (9:00 AM–6:00 PM).
Until what time in Keflavik is it still yesterday in Austin, TX?
Before 5:00 AM in Keflavik, the date in Austin has not changed yet. From 7:00 PM in Austin, it is already the next day in Keflavik.
Does the time gap between Keflavik and Austin, TX, change during the year?
Yes – daylight saving time is used in Austin but not in Keflavik. From November 1, 2026, Austin will be 6 hours behind Keflavik.
