Cardiff to Austin, TX: time difference
Austin, TX is 6 h behind Cardiff. 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.
Cardiff 03:27 3:27 AM Austin, TX 21:27 9:27 PM You –:–
03:27 3:27 AM
British Summer Time · UTC+1
☀️ 07:28 · 🌙 18:33
21:27 9:27 PM
Central Daylight Time · UTC-5
☀️ 07:30 · 🌙 19:08
·
−6 h
Austin, TX is 6 h behind Cardiff.
When you, Cardiff 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
🇬🇧 Cardiff
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
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 13 1 PM 14 2 PM 15 3 PM 16 4 PM 17 5 PM
📍 Your time
- Asleep
- Early
- Working hours
- Evening
- Both working
- Right now
Time zones side by side
| Detail | 🇬🇧 Cardiff | 🇺🇸 Austin, TX |
|---|---|---|
| Local time | 03:27 | 21:27 |
| Local date | Saturday, October 10, 2026 | Friday, October 9, 2026 |
| Time zone | British Summer Time | Central Daylight Time |
| UTC offset | UTC+1 | UTC-5 |
| Offset from Cardiff | — | −6 h |
| IANA zone | Europe/London | America/Chicago |
| Daylight saving | On summer time → UTC+0, Oct 25, 01:00 | On summer time → UTC-6, Nov 1, 01:00 |
| Sunrise | 07:28 | 07:30 |
| Sunset | 18:33 | 19:08 |
| Daylight | 11 h 4 min | 11 h 38 min |
| People on this clock | 346,100 | 974,447 |
Compare Cardiff with another city
More comparisons with Cardiff: the time zones next to it and the far side of the clock.
Big time differences
Cardiff and Austin, TX: common questions
How far behind Cardiff is Austin, TX?
Austin is 6 hours behind Cardiff: UTC−5 against UTC+1.
What time is it in Austin, TX, when it is 9:00 AM in Cardiff?
When it is 9:00 AM in Cardiff, it is 3:00 AM in Austin.
What time is it in Austin, TX, when it is 6:00 PM in Cardiff?
When it is 6:00 PM in Cardiff, it is 12:00 PM in Austin.
When is a good time to call Austin, TX, from Cardiff?
Between 3:00 PM and 6:00 PM in Cardiff – that is 9:00 AM to 12:00 PM in Austin – both places are within working hours (9:00 AM–6:00 PM).
When does the date change in Austin, TX, compared with Cardiff?
The new day starts in Austin later: until 6:00 AM in Cardiff, it is still the previous day there. From 6:00 PM in Austin, Cardiff is already on the next day.
Does the time difference between Cardiff and Austin, TX, change?
Yes. Both places change their clocks, but on different dates. From October 25, 2026, Austin will be 5 hours behind Cardiff.
