Time in San Antonio, United States

Time zone: CDT (UTC/GMT -05:00) — America/Chicago

Clocks in San Antonio are set to CDT, 5 hours behind UTC (UTC-05:00). Software that asks for a region wants America/Chicago — the IANA identifier for this zone.

One date to watch: Sunday, 01 November 2026. That is when San Antonio goes back 1 hour onto CST — recurring meetings set before then will land an hour out unless the calendar handles zones properly.

Across United States there are 10 distinct time zones among these 419 cities, so "local time" there depends entirely on which city you mean.

San Antonio has roughly 1,434,625 residents and ranks 5th by population among the United States cities on this site.

How San Antonio lines up against other major centres at this moment — the numbers move when either side changes its clocks.

Usable call slots from San Antonio, taking business hours as 09:00 to 17:00 in both places.

No shared working window exists with Dubai, Mumbai, Shanghai or Tokyo, so those calls have to sit outside somebody's normal hours.

Same zone, same time — each of these sits on America/Chicago alongside San Antonio, including through any clock change.

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