There is no time difference between Austin and San Antonio. Both cities use Central Time (CT, UTC-6/-5). When it's 12:00 PM in Austin, it's also 12:00 PM in San Antonio.
Both cities observe daylight saving time on the same schedule, so they remain synchronized year-round.
Any time works! Since both cities share the same timezone, you can schedule calls during standard business hours (9:00 AM - 6:00 PM) without any time conversion needed.
Austin and San Antonio are neighboring Texas cities just 80 miles apart. Austin is the state capital known for tech and music, while San Antonio is famous for the Alamo and military bases. The two cities form part of the Texas Triangle megaregion.