Sao Paulo to San Marcos, TX: time difference
San Marcos, TX is 2 h behind Sao Paulo. 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.
Sao Paulo 09:13 9:13 AM San Marcos, TX 07:13 7:13 AM You –:–
09:13 9:13 AM
Brasilia Standard Time · UTC-3
☀️ 05:32 · 🌙 18:13
07:13 7:13 AM
Central Daylight Time · UTC-5
☀️ 07:36 · 🌙 18:59
·
−2 h
San Marcos, TX is 2 h behind Sao Paulo.
When you, Sao Paulo and San Marcos, 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
🇧🇷 Sao Paulo
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 Marcos, TX
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 15 3 PM 16 4 PM 17 5 PM 18 6 PM 19 7 PM 20 8 PM 21 9 PM
📍 Your time
- Asleep
- Early
- Working hours
- Evening
- Both working
- Right now
Time zones side by side
| Detail | 🇧🇷 Sao Paulo | 🇺🇸 San Marcos, TX |
|---|---|---|
| Local time | 09:13 | 07:13 |
| Local date | Sunday, October 18, 2026 | Sunday, October 18, 2026 |
| Time zone | Brasilia Standard Time | Central Daylight Time |
| UTC offset | UTC-3 | UTC-5 |
| Offset from Sao Paulo | — | −2 h |
| IANA zone | America/Sao Paulo | America/Chicago |
| Daylight saving | Not observed | On summer time → UTC-6, Nov 1, 01:00 |
| Sunrise | 05:32 | 07:36 |
| Sunset | 18:13 | 18:59 |
| Daylight | 12 h 41 min | 11 h 23 min |
| People on this clock | 11,451,999 | 44,894 |
Compare Sao Paulo with another city
More comparisons with Sao Paulo: the time zones next to it and the far side of the clock.
Nearby time zones
Big time differences
Sao Paulo and San Marcos, TX: common questions
What is the time difference between Sao Paulo and San Marcos, TX?
San Marcos is 2 hours behind: it uses UTC−5, while Sao Paulo is on UTC−3.
What time is it in San Marcos, TX, at the start of the working day in Sao Paulo?
The working day in Sao Paulo starts at 9:00 AM; in San Marcos it is 7:00 AM at that moment.
What time is it in San Marcos, TX, when it is 6:00 PM in Sao Paulo?
When it is 6:00 PM in Sao Paulo, it is 4:00 PM in San Marcos.
When is a good time to call San Marcos, TX, from Sao Paulo?
Between 11:00 AM and 6:00 PM in Sao Paulo – that is 9:00 AM to 4:00 PM in San Marcos – both places are within working hours (9:00 AM–6:00 PM).
Until what time in Sao Paulo is it still yesterday in San Marcos, TX?
Before 2:00 AM in Sao Paulo, the date in San Marcos has not changed yet. From 10:00 PM in San Marcos, it is already the next day in Sao Paulo.
Is the time difference between Sao Paulo and San Marcos, TX, the same all year?
No. Only San Marcos switches to summer time, so the gap changes twice a year. From November 1, 2026, San Marcos will be 3 hours behind Sao Paulo.
