Time difference between Rio de Janeiro and San Antonio
Compare the current local time in Rio de Janeiro and San Antonio, see when your working hours overlap, and convert any specific hour between the two timezones.
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Convert a specific time
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Working-hours overlap
When Rio de Janeiro's 9:00–17:00 business hours overlap with San Antonio's.
Rio de Janeiro working hours
San Antonio working hours
Overlap (both working)
🇧🇷 Rio de Janeiro
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🇺🇸 San Antonio
Scheduling across Rio de Janeiro and San Antonio
Working across Rio de Janeiro and San Antonio is very easy. Their standard business hours overlap for around 6 hours every day, from 11:00 to 17:00 in Rio de Janeiro (09:00 to 15:00 in San Antonio). Meetings can sit comfortably inside the regular working day on both sides.
Quick reference
| 🇧🇷 Rio de Janeiro | 🇺🇸 San Antonio | In San Antonio it's… |
|---|---|---|
| 06:00 — Early morning | — | — |
| 09:00 — Start of work | — | — |
| 12:00 — Lunchtime | — | — |
| 15:00 — Mid-afternoon | — | — |
| 17:00 — End of work | — | — |
| 20:00 — Evening | — | — |
Daylight saving status
🇧🇷 Rio de Janeiro
Rio de Janeiro does not observe daylight saving time. The local offset is fixed year-round.
🇺🇸 San Antonio
Currently in CDT (daylight saving)
Clocks go back to CST
on Sunday 1 November 2026