Austin, TX to Groton, CT: time difference
Groton, CT 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 09:48 9:48 AM Groton, CT 10:48 10:48 AM You –:–
09:48 9:48 AM
Central Daylight Time · UTC-5
☀️ 07:37 · 🌙 18:56
10:48 10:48 AM
Eastern Daylight Time · UTC-4
☀️ 07:06 · 🌙 18:01
·
+1 h
Groton, CT is 1 h ahead of Austin, TX.
When you, Austin, TX and Groton, CT 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
🇺🇸 Groton, CT
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
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Time zones side by side
| Detail | 🇺🇸 Austin, TX | 🇺🇸 Groton, CT |
|---|---|---|
| Local time | 09:48 | 10:48 |
| Local date | Tuesday, October 20, 2026 | Tuesday, October 20, 2026 |
| Time zone | Central Daylight Time | Eastern Daylight Time |
| UTC offset | UTC-5 | UTC-4 |
| Offset from Austin, TX | — | +1 h |
| IANA zone | America/Chicago | America/New York |
| Daylight saving | On summer time → UTC-6, Nov 1, 01:00 | On summer time → UTC-5, Nov 1, 01:00 |
| Sunrise | 07:37 | 07:06 |
| Sunset | 18:56 | 18:01 |
| Daylight | 11 h 19 min | 10 h 55 min |
| People on this clock | 974,447 | 40,115 |
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 Groton, CT: common questions
How many hours ahead of Austin, TX, is Groton, CT?
The clocks in Groton are 1 hour ahead of those in Austin (UTC−4 and UTC−5).
If it is 9:00 AM in Austin, TX, what time is it in Groton, CT?
At 9:00 AM in Austin, clocks in Groton show 10:00 AM.
What time is it in Groton, CT, at the end of the working day in Austin, TX?
The working day in Austin ends at 6:00 PM; in Groton it is 7:00 PM at that moment.
When do working hours in Austin, TX, and in Groton, CT, overlap?
Working hours (9:00 AM–6:00 PM) overlap from 9:00 AM to 5:00 PM in Austin, which is 10:00 AM to 6:00 PM in Groton.
When does the date change in Groton, CT, compared with Austin, TX?
The new day starts in Groton earlier: at 11:00 PM in Austin it is already midnight there. Until 1:00 AM in Groton, Austin is still on the previous day.
Does the time difference between Austin, TX, and Groton, CT, change?
No. The clocks in Austin and in Groton change on the same dates, so the difference stays 1 hour.
