Time difference
San Diego to Sydney Time Difference
Sydney is 18 hours ahead of San Diego — when it's 12:00 PM in San Diego, it's 6:00 AM the next day in Sydney. (San Diego (America/Los_Angeles, PDT); Sydney (Australia/Sydney, AEDT).) Below: live local times, the best hours for a call, a full conversion table, and exact daylight-saving dates.
Sydney is 18 hours ahead of San Diego. The best window for a call is 3 PM–5 PM in San Diego, which is 9 AM–11 AM in Sydney — a 2-hour overlap inside 9 AM–5 PM on both sides. Clocks change on November 1, 2026, which briefly shifts the gap between San Diego 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 Diego, it's 3:00 AM the next day in Sydney.
- When it's 9:00 AM in Sydney, it's 3:00 PM the previous day in San Diego.
Sydney is currently 18 hours ahead of San Diego.
Interactive converter
12:00PM
Select both cities to see the converted time.
Best times to meet
The 9 AM – 5 PM business windows in San Diego and Sydney overlap for 2 hours. 3 PM–5 PM in San Diego is 9 AM–11 AM in Sydney. Aim somewhere in the middle of that window so neither side starts cold or finishes drained.
Quick conversion table
| San Diego | Sydney |
|---|---|
| 12 AM | 6:00 PM |
| 1 AM | 7:00 PM |
| 2 AM | 8:00 PM |
| 3 AM | 9:00 PM |
| 4 AM | 10:00 PM |
| 5 AM | 11:00 PM |
| 6 AM | 12:00 AM (next day) |
| 7 AM | 1:00 AM (next day) |
| 8 AM | 2:00 AM (next day) |
| 9 AM | 3:00 AM (next day) |
| 10 AM | 4:00 AM (next day) |
| 11 AM | 5:00 AM (next day) |
| 12 PM | 6:00 AM (next day) |
| 1 PM | 7:00 AM (next day) |
| 2 PM | 8:00 AM (next day) |
| 3 PM | 9:00 AM (next day) |
| 4 PM | 10:00 AM (next day) |
| 5 PM | 11:00 AM (next day) |
| 6 PM | 12:00 PM (next day) |
| 7 PM | 1:00 PM (next day) |
| 8 PM | 2:00 PM (next day) |
| 9 PM | 3:00 PM (next day) |
| 10 PM | 4:00 PM (next day) |
| 11 PM | 5:00 PM (next day) |
Daylight saving
On November 1, 2026, San Diego shifts for daylight saving. After that, Sydney will be 19 hours ahead of San Diego (currently 18 hours ahead of San Diego). The converter and the tables above always reflect the correct offset for the date you pick.
- San Diego is currently observing daylight saving time.
- Sydney is currently observing daylight saving time.
Frequently asked questions
- Is Sydney ahead of or behind San Diego?
- Sydney is 18 hours ahead of San Diego.
- How many hours ahead of San Diego is Sydney?
- Sydney is 18 hours ahead of San Diego.
- What time is 9 AM in San Diego in Sydney?
- 9:00 AM in San Diego is 3:00 AM the next day in Sydney.
- What time is noon in San Diego in Sydney?
- 12:00 PM in San Diego is 6:00 AM the next day in Sydney.
- What time is 5 PM in San Diego in Sydney?
- 5:00 PM in San Diego is 11:00 AM the next day in Sydney. Useful for end-of-day handoffs between the two offices.
- What time is 3 PM in San Diego in Sydney?
- 3:00 PM in San Diego is 9:00 AM the next day in Sydney.
- Is San Diego currently observing daylight saving time?
- San Diego is currently observing daylight saving time (summer time).
- Is Sydney currently observing daylight saving time?
- Sydney is currently observing daylight saving time (summer time).
- Do San Diego and Sydney observe daylight saving?
- On November 1, 2026, San Diego shifts for daylight saving. After that, Sydney will be 19 hours ahead of San Diego (currently 18 hours ahead of San Diego). 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 Diego?
- Aim for 3 PM–5 PM in San Diego, which is 9 AM–11 AM in Sydney.
- When is the best time to call San Diego from Sydney?
- Aim for 9 AM–11 AM in Sydney, which is 3 PM–5 PM in San Diego.
- San Diego (PDT) to Sydney (AEDT) — how do I convert quickly?
- Add 18 hours to San Diego 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 Diego
- London to San Diego
- San Diego to Tokyo
- Dubai to San Diego
- San Diego to Singapore
- Los Angeles to San Diego
- Paris to San Diego
- Mumbai to San Diego
- Hong Kong to San Diego
- San Diego to San Francisco