Austin, TX to San Juan: time difference
San Juan 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 07:18 7:18 AM San Juan 08:18 8:18 AM You –:–
07:18 7:18 AM
Central Daylight Time · UTC-5
☀️ 07:30 · 🌙 19:07
08:18 8:18 AM
Atlantic Standard Time · UTC-4
☀️ 06:18 · 🌙 18:07
·
+1 h
San Juan is 1 h ahead of Austin, TX.
When you, Austin, TX and San Juan 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
🇵🇷 San Juan
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
- Right now
Time zones side by side
| Detail | 🇺🇸 Austin, TX | 🇵🇷 San Juan |
|---|---|---|
| Local time | 07:18 | 08:18 |
| 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/Puerto Rico |
| Daylight saving | On summer time → UTC-6, Nov 1, 01:00 | Not observed |
| Sunrise | 07:30 | 06:18 |
| Sunset | 19:07 | 18:07 |
| Daylight | 11 h 36 min | 11 h 49 min |
| People on this clock | 974,447 | 322,854 |
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 San Juan: common questions
What is the time difference between Austin, TX, and San Juan?
San Juan is 1 hour ahead: it uses UTC−4, while Austin is on UTC−5.
If it is 9:00 AM in Austin, TX, what time is it in San Juan?
At 9:00 AM in Austin, clocks in San Juan show 10:00 AM.
If it is 6:00 PM in Austin, TX, what time is it in San Juan?
At 6:00 PM in Austin, clocks in San Juan show 7:00 PM.
Is there a time when both Austin, TX, and San Juan are at work?
Yes: from 9:00 AM to 5:00 PM in Austin (10:00 AM to 6:00 PM in San Juan), the working days (9:00 AM–6:00 PM) overlap.
From what time in Austin, TX, is it tomorrow in San Juan?
Once it is 11:00 PM in Austin, the date in San Juan has already changed. Until 1:00 AM in San Juan, it is still the previous day in Austin.
Is the time difference between Austin, TX, and San Juan the same all year?
No. Only Austin switches to summer time, so the gap changes twice a year. From November 1, 2026, San Juan will be 2 hours ahead of Austin.
