Rio Grande to Austin, TX: time difference
Austin, TX is 1 h behind Rio Grande. 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.
Rio Grande 12:25 12:25 PM Austin, TX 11:25 11:25 AM You –:–
12:25 12:25 PM
Atlantic Standard Time · UTC-4
☀️ 06:18 · 🌙 18:00
11:25 11:25 AM
Central Daylight Time · UTC-5
☀️ 07:35 · 🌙 18:59
·
−1 h
Austin, TX is 1 h behind Rio Grande.
When you, Rio Grande 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
🇵🇷 Rio Grande
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
- Asleep
- Early
- Working hours
- Evening
- Both working
- Right now
Time zones side by side
| Detail | 🇵🇷 Rio Grande | 🇺🇸 Austin, TX |
|---|---|---|
| Local time | 12:25 | 11:25 |
| Local date | Saturday, October 17, 2026 | Saturday, October 17, 2026 |
| Time zone | Atlantic Standard Time | Central Daylight Time |
| UTC offset | UTC-4 | UTC-5 |
| Offset from Rio Grande | — | −1 h |
| IANA zone | America/Puerto Rico | America/Chicago |
| Daylight saving | Not observed | On summer time → UTC-6, Nov 1, 01:00 |
| Sunrise | 06:18 | 07:35 |
| Sunset | 18:00 | 18:59 |
| Daylight | 11 h 42 min | 11 h 24 min |
| People on this clock | 13,467 | 974,447 |
Compare Rio Grande with another city
More comparisons with Rio Grande: the time zones next to it and the far side of the clock.
Nearby time zones
Big time differences
Rio Grande and Austin, TX: common questions
What is the time difference between Rio Grande and Austin, TX?
Austin is 1 hour behind: it uses UTC−5, while Rio Grande is on UTC−4.
What time is it in Austin, TX, at the start of the working day in Rio Grande?
The working day in Rio Grande starts at 9:00 AM; in Austin it is 8:00 AM at that moment.
What time is it in Austin, TX, at the end of the working day in Rio Grande?
The working day in Rio Grande ends at 6:00 PM; in Austin it is 5:00 PM at that moment.
When is a good time to call Austin, TX, from Rio Grande?
Between 10:00 AM and 6:00 PM in Rio Grande – that is 9:00 AM to 5:00 PM in Austin – both places are within working hours (9:00 AM–6:00 PM).
Until what time in Rio Grande is it still yesterday in Austin, TX?
Before 1:00 AM in Rio Grande, the date in Austin has not changed yet. From 11:00 PM in Austin, it is already the next day in Rio Grande.
Does the time difference between Rio Grande and Austin, TX, change?
Yes. The clocks change only in Austin. From November 1, 2026, Austin will be 2 hours behind Rio Grande.
