Time difference
San Antonio to Sydney Time Difference
Sydney is 15 hours ahead of San Antonio — when it's 12:00 PM in San Antonio, it's 3:00 AM the next day in Sydney. (San Antonio (America/Chicago, CDT); Sydney (Australia/Sydney, AEST).) Below: live local times, the best hours for a call, a full conversion table, and exact daylight-saving dates.
Sydney is 15 hours ahead of San Antonio. Standard 9 AM–5 PM business hours in San Antonio and Sydney do not overlap, so a live call needs one side outside normal hours. Clocks change on October 4, 2026, which briefly shifts the gap between San Antonio and Sydney — the converter on this page always reflects the correct offset for the date you pick.
- When it's 9:00 AM in San Antonio, it's 12:00 AM the next day in Sydney.
- When it's 9:00 AM in Sydney, it's 6:00 PM the previous day in San Antonio.
Sydney is currently 15 hours ahead of San Antonio.
Interactive converter
12:00PM
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Best times to meet
Standard 9 AM – 5 PM hours in San Antonio and Sydney do not overlap. The least-bad options are an early start in one city or a late evening call in the other — for example a 7–8 AM meeting in San Antonio, or a 6–8 PM meeting in Sydney.
Quick conversion table
| San Antonio | Sydney |
|---|---|
| 12 AM | 3:00 PM |
| 1 AM | 4:00 PM |
| 2 AM | 5:00 PM |
| 3 AM | 6:00 PM |
| 4 AM | 7:00 PM |
| 5 AM | 8:00 PM |
| 6 AM | 9:00 PM |
| 7 AM | 10:00 PM |
| 8 AM | 11:00 PM |
| 9 AM | 12:00 AM (next day) |
| 10 AM | 1:00 AM (next day) |
| 11 AM | 2:00 AM (next day) |
| 12 PM | 3:00 AM (next day) |
| 1 PM | 4:00 AM (next day) |
| 2 PM | 5:00 AM (next day) |
| 3 PM | 6:00 AM (next day) |
| 4 PM | 7:00 AM (next day) |
| 5 PM | 8:00 AM (next day) |
| 6 PM | 9:00 AM (next day) |
| 7 PM | 10:00 AM (next day) |
| 8 PM | 11:00 AM (next day) |
| 9 PM | 12:00 PM (next day) |
| 10 PM | 1:00 PM (next day) |
| 11 PM | 2:00 PM (next day) |
Daylight saving
On October 4, 2026, Sydney shifts for daylight saving. After that, Sydney will be 16 hours ahead of San Antonio (currently 15 hours ahead of San Antonio). The converter and the tables above always reflect the correct offset for the date you pick.
- San Antonio is currently observing daylight saving time.
- Sydney is not currently observing daylight saving time (standard time is in effect).
Frequently asked questions
- Is Sydney ahead of or behind San Antonio?
- Sydney is 15 hours ahead of San Antonio.
- How many hours ahead of San Antonio is Sydney?
- Sydney is 15 hours ahead of San Antonio.
- What time is 9 AM in San Antonio in Sydney?
- 9:00 AM in San Antonio is 12:00 AM the next day in Sydney.
- What time is noon in San Antonio in Sydney?
- 12:00 PM in San Antonio is 3:00 AM the next day in Sydney.
- What time is 5 PM in San Antonio in Sydney?
- 5:00 PM in San Antonio is 8:00 AM the next day in Sydney. Useful for end-of-day handoffs between the two offices.
- What time is 3 PM in San Antonio in Sydney?
- 3:00 PM in San Antonio is 6:00 AM the next day in Sydney.
- Is San Antonio currently observing daylight saving time?
- San Antonio is currently observing daylight saving time (summer time).
- Is Sydney currently observing daylight saving time?
- Sydney observes daylight saving time seasonally, but is not currently on DST (standard time is in effect).
- Do San Antonio and Sydney observe daylight saving?
- On October 4, 2026, Sydney shifts for daylight saving. After that, Sydney will be 16 hours ahead of San Antonio (currently 15 hours ahead of San Antonio). The converter and the tables above always reflect the correct offset for the date you pick.
- When is the best time to call Sydney from San Antonio?
- San Antonio and Sydney business hours don't overlap. The closest options are early mornings in San Antonio or late evenings, when one side stretches outside 9–5.
- When is the best time to call San Antonio from Sydney?
- Sydney and San Antonio business hours don't overlap. The closest options are early mornings in Sydney or late evenings, when one side stretches outside 9–5.
- San Antonio (CDT) to Sydney (AEST) — how do I convert quickly?
- Add 15 hours to San Antonio local time to get Sydney local time. Or use the converter at the top of this page — it stays accurate through daylight-saving changes automatically.
Other conversions
- New York to San Antonio
- London to San Antonio
- San Antonio to Tokyo
- Dubai to San Antonio
- San Antonio to Singapore
- Los Angeles to San Antonio
- Paris to San Antonio
- Mumbai to San Antonio
- Hong Kong to San Antonio
- San Antonio to San Francisco