Portsmouth, NH to Austin, TX: time difference
Austin, TX is 1 h behind Portsmouth, NH. 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.
Portsmouth, NH 03:30 3:30 AM Austin, TX 02:30 2:30 AM You –:–
03:30 3:30 AM
Eastern Daylight Time · UTC-4
☀️ 07:02 · 🌙 17:55
02:30 2:30 AM
Central Daylight Time · UTC-5
☀️ 07:36 · 🌙 18:57
·
−1 h
Austin, TX is 1 h behind Portsmouth, NH.
When you, Portsmouth, NH 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
🇺🇸 Portsmouth, NH
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
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 19 7 PM 20 8 PM 21 9 PM 22 10 PM
📍 Your time
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Time zones side by side
| Detail | 🇺🇸 Portsmouth, NH | 🇺🇸 Austin, TX |
|---|---|---|
| Local time | 03:30 | 02:30 |
| Local date | Monday, October 19, 2026 | Monday, October 19, 2026 |
| Time zone | Eastern Daylight Time | Central Daylight Time |
| UTC offset | UTC-4 | UTC-5 |
| Offset from Portsmouth, NH | — | −1 h |
| IANA zone | America/New York | America/Chicago |
| Daylight saving | On summer time → UTC-5, Nov 1, 01:00 | On summer time → UTC-6, Nov 1, 01:00 |
| Sunrise | 07:02 | 07:36 |
| Sunset | 17:55 | 18:57 |
| Daylight | 10 h 54 min | 11 h 21 min |
| People on this clock | 95,535 | 974,447 |
Compare Portsmouth, NH with another city
More comparisons with Portsmouth, NH: the time zones next to it and the far side of the clock.
Nearby time zones
Big time differences
Portsmouth, NH and Austin, TX: common questions
What is the time difference between Portsmouth, NH, and Austin, TX?
Austin is 1 hour behind: it uses UTC−5, while Portsmouth is on UTC−4.
If it is 9:00 AM in Portsmouth, NH, what time is it in Austin, TX?
At 9:00 AM in Portsmouth, clocks in Austin show 8:00 AM.
What time is it in Austin, TX, at the end of the working day in Portsmouth, NH?
The working day in Portsmouth ends at 6:00 PM; in Austin it is 5:00 PM at that moment.
Is there a time when both Portsmouth, NH, and Austin, TX, are at work?
Yes: from 10:00 AM to 6:00 PM in Portsmouth (9:00 AM to 5:00 PM in Austin), the working days (9:00 AM–6:00 PM) overlap.
Until what time in Portsmouth, NH, is it still yesterday in Austin, TX?
Before 1:00 AM in Portsmouth, the date in Austin has not changed yet. From 11:00 PM in Austin, it is already the next day in Portsmouth.
Is the time difference between Portsmouth, NH, and Austin, TX, the same all year?
Yes. Both places switch to summer time and back on the same dates, so the gap remains 1 hour.
