Austin, TX to Guam: time difference
Guam is 15 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 22:19 10:19 PM Guam 13:19 1:19 PM You –:–
22:19 10:19 PM
Central Daylight Time · UTC-5
☀️ 07:30 · 🌙 19:08
13:19 1:19 PM
Chamorro Standard Time · UTC+10
☀️ 06:12 · 🌙 18:06
·
+15 h
Guam is 15 h ahead of Austin, TX.
When you, Austin, TX and Guam 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
🇬🇺 Guam
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 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
📍 Your time
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Time zones side by side
| Detail | 🇺🇸 Austin, TX | 🇬🇺 Guam |
|---|---|---|
| Local time | 22:19 | 13:19 |
| Local date | Friday, October 9, 2026 | Saturday, October 10, 2026 |
| Time zone | Central Daylight Time | Chamorro Standard Time |
| UTC offset | UTC-5 | UTC+10 |
| Offset from Austin, TX | — | +15 h |
| IANA zone | America/Chicago | Pacific/Guam |
| Daylight saving | On summer time → UTC-6, Nov 1, 01:00 | Not observed |
| Sunrise | 07:30 | 06:12 |
| Sunset | 19:08 | 18:06 |
| Daylight | 11 h 38 min | 11 h 55 min |
| People on this clock | 974,447 | 153,836 |
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 Guam: common questions
How many hours ahead of Austin, TX, is Guam?
The clocks in Guam are 15 hours ahead of those in Austin (UTC+10 and UTC−5).
What time is it in Guam when it is 9:00 AM in Austin, TX?
When it is 9:00 AM in Austin, it is 12:00 AM (the next day) in Guam.
What time is it in Guam at the end of the working day in Austin, TX?
The working day in Austin ends at 6:00 PM; in Guam it is 9:00 AM (the next day) at that moment.
When is a good time to call Guam from Austin, TX?
Working hours (9:00 AM–6:00 PM) in Austin and in Guam do not overlap. At 9:00 AM in Austin it is 12:00 AM (the next day) in Guam; when the working day starts in Guam, it is 6:00 PM (the previous day) in Austin.
When does the date change in Guam compared with Austin, TX?
The new day starts in Guam earlier: at 9:00 AM in Austin it is already midnight there. Until 3:00 PM in Guam, Austin is still on the previous day.
Is the time difference between Austin, TX, and Guam the same all year?
No. Only Austin switches to summer time, so the gap changes twice a year. From November 1, 2026, Guam will be 16 hours ahead of Austin.
