San Marcos, TX to Sao Paulo: time difference
Sao Paulo is 2 h ahead of San Marcos, 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.
San Marcos, TX 09:20 9:20 AM Sao Paulo 11:20 11:20 AM You –:–
09:20 9:20 AM
Central Daylight Time · UTC-5
☀️ 07:36 · 🌙 18:59
11:20 11:20 AM
Brasilia Standard Time · UTC-3
☀️ 05:32 · 🌙 18:13
·
+2 h
Sao Paulo is 2 h ahead of San Marcos, TX.
When you, San Marcos, TX and Sao Paulo are all at the desk
Pick the working hours below – the window every location shares appears once your time zone is known.
Working hours
🇺🇸 San Marcos, 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
🇧🇷 Sao Paulo
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 1 1 AM
📍 Your time
- Asleep
- Early
- Working hours
- Evening
- Both working
- Right now
Time zones side by side
| Detail | 🇺🇸 San Marcos, TX | 🇧🇷 Sao Paulo |
|---|---|---|
| Local time | 09:20 | 11:20 |
| Local date | Sunday, October 18, 2026 | Sunday, October 18, 2026 |
| Time zone | Central Daylight Time | Brasilia Standard Time |
| UTC offset | UTC-5 | UTC-3 |
| Offset from San Marcos, TX | — | +2 h |
| IANA zone | America/Chicago | America/Sao Paulo |
| Daylight saving | On summer time → UTC-6, Nov 1, 01:00 | Not observed |
| Sunrise | 07:36 | 05:32 |
| Sunset | 18:59 | 18:13 |
| Daylight | 11 h 23 min | 12 h 41 min |
| People on this clock | 44,894 | 11,451,999 |
Compare San Marcos, TX with another city
More comparisons with San Marcos, TX: the time zones next to it and the far side of the clock.
Nearby time zones
Big time differences
San Marcos, TX and Sao Paulo: common questions
How many hours ahead of San Marcos, TX, is Sao Paulo?
The clocks in Sao Paulo are 2 hours ahead of those in San Marcos (UTC−3 and UTC−5).
What time is it in Sao Paulo when it is 9:00 AM in San Marcos, TX?
When it is 9:00 AM in San Marcos, it is 11:00 AM in Sao Paulo.
What time is it in Sao Paulo when it is 6:00 PM in San Marcos, TX?
When it is 6:00 PM in San Marcos, it is 8:00 PM in Sao Paulo.
Is there a time when both San Marcos, TX, and Sao Paulo are at work?
Yes: from 9:00 AM to 4:00 PM in San Marcos (11:00 AM to 6:00 PM in Sao Paulo), the working days (9:00 AM–6:00 PM) overlap.
When is it already the next day in Sao Paulo?
From 10:00 PM in San Marcos, TX, it is already the next day in Sao Paulo. The other way round, until 2:00 AM in Sao Paulo it is still the previous day in San Marcos.
Does the time difference between San Marcos, TX, and Sao Paulo change?
Yes. The clocks change only in San Marcos. From November 1, 2026, Sao Paulo will be 3 hours ahead of San Marcos.
