Austin, TX to Portsmouth: time difference
Portsmouth is 1 h ahead of Austin, TX. 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.
Austin, TX 05:52 5:52 AM Portsmouth 06:52 6:52 AM You –:–
05:52 5:52 AM
Central Daylight Time · UTC-5
☀️ 07:30 · 🌙 19:07
06:52 6:52 AM
Atlantic Standard Time · UTC-4
☀️ 05:57 · 🌙 17:50
·
+1 h
Portsmouth is 1 h ahead of Austin, TX.
When you, Austin, TX and Portsmouth are all at the desk
Pick the working hours below – the window every location shares appears once your time zone is known.
Working hours
🇺🇸 Austin, TX
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
🇩🇲 Portsmouth
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 0 12 AM
📍 Your time
- Asleep
- Early
- Working hours
- Evening
- Both working
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Time zones side by side
| Detail | 🇺🇸 Austin, TX | 🇩🇲 Portsmouth |
|---|---|---|
| Local time | 05:52 | 06:52 |
| Local date | Saturday, October 10, 2026 | Saturday, October 10, 2026 |
| Time zone | Central Daylight Time | Atlantic Standard Time |
| UTC offset | UTC-5 | UTC-4 |
| Offset from Austin, TX | — | +1 h |
| IANA zone | America/Chicago | America/Dominica |
| Daylight saving | On summer time → UTC-6, Nov 1, 01:00 | Not observed |
| Sunrise | 07:30 | 05:57 |
| Sunset | 19:07 | 17:50 |
| Daylight | 11 h 36 min | 11 h 52 min |
| People on this clock | 974,447 | 3,633 |
Compare Austin, TX with another city
More comparisons with Austin, TX: the time zones next to it and the far side of the clock.
Nearby time zones
Big time differences
Austin, TX and Portsmouth: common questions
How far ahead of Austin, TX, is Portsmouth?
Portsmouth is 1 hour ahead of Austin: UTC−4 against UTC−5.
What time is it in Portsmouth at the start of the working day in Austin, TX?
The working day in Austin starts at 9:00 AM; in Portsmouth it is 10:00 AM at that moment.
If it is 6:00 PM in Austin, TX, what time is it in Portsmouth?
At 6:00 PM in Austin, clocks in Portsmouth show 7:00 PM.
Is there a time when both Austin, TX, and Portsmouth are at work?
Yes: from 9:00 AM to 5:00 PM in Austin (10:00 AM to 6:00 PM in Portsmouth), the working days (9:00 AM–6:00 PM) overlap.
When is it already the next day in Portsmouth?
From 11:00 PM in Austin, TX, it is already the next day in Portsmouth. The other way round, until 1:00 AM in Portsmouth it is still the previous day in Austin.
Does the time gap between Austin, TX, and Portsmouth change during the year?
Yes – daylight saving time is used in Austin but not in Portsmouth. From November 1, 2026, Portsmouth will be 2 hours ahead of Austin.
