San Francisco to Sydney Time Difference
Sydney is 18 hours ahead of San Francisco. When it's 05:57:06 AM in San Francisco, it's 11:57:06 PM in Sydney.
How Many Hours Ahead Is Sydney From San Francisco?
Sydney is 18 hours ahead of San Francisco. So San Francisco is 18 hours behind Sydney looking the other way — the same gap, described from the other end.
In practice that means a working day in San Francisco starts when it is already 3:00 AM the next day in Sydney. The gap is not fixed all year: it becomes 19 hours on Sunday, November 1, 2026, when San Francisco changes its clocks.
Best Time to Call San Francisco and Sydney
Both cities are inside normal business hours between 3:00 PM and 5:00 PM in San Francisco — that's 9:00 AM to 11:00 AM in Sydney. That's a 2-hour window, so a call fits comfortably in either side's working day.
both at work San Francisco only Sydney only neither — hours shown along the strip are San Francisco local time.
Convert a Specific Time
Pick any date and time in San Francisco to see the exact equivalent in Sydney.
Common Times Converted
San Francisco time on the left, Sydney time on the right.
San Francisco to Sydney: Full 24-Hour Conversion Table
Based on today, Sunday, October 11, 2026 in San Francisco. Shaded rows are working hours; the darker shade marks the hours when both cities are at work.
| San Francisco | Sydney | Working hours |
|---|---|---|
| 12:00 AM | 6:00 PM | — |
| 1:00 AM | 7:00 PM | — |
| 2:00 AM | 8:00 PM | — |
| 3:00 AM | 9:00 PM | — |
| 4:00 AM | 10:00 PM | — |
| 5:00 AM | 11:00 PM | — |
| 6:00 AM | 12:00 AM next day | — |
| 7:00 AM | 1:00 AM next day | — |
| 8:00 AM | 2:00 AM next day | — |
| 9:00 AM | 3:00 AM next day | San Francisco only |
| 10:00 AM | 4:00 AM next day | San Francisco only |
| 11:00 AM | 5:00 AM next day | San Francisco only |
| 12:00 PM | 6:00 AM next day | San Francisco only |
| 1:00 PM | 7:00 AM next day | San Francisco only |
| 2:00 PM | 8:00 AM next day | San Francisco only |
| 3:00 PM | 9:00 AM next day | Both cities |
| 4:00 PM | 10:00 AM next day | Both cities |
| 5:00 PM | 11:00 AM next day | Sydney only |
| 6:00 PM | 12:00 PM next day | Sydney only |
| 7:00 PM | 1:00 PM next day | Sydney only |
| 8:00 PM | 2:00 PM next day | Sydney only |
| 9:00 PM | 3:00 PM next day | Sydney only |
| 10:00 PM | 4:00 PM next day | Sydney only |
| 11:00 PM | 5:00 PM next day | — |
Understanding the San Francisco – Sydney Time Difference
San Francisco runs on America/Los_Angeles, currently PDT (UTC-7:00). Sydney runs on Australia/Sydney, currently AEDT (UTC+11:00). The gap of 18 hours is simply the distance between those two offsets.
Both cities observe Daylight Saving Time, but they don't switch on the same date — so for a few weeks each year the gap between them is different again. The next shift is on Sunday, November 1, 2026, when San Francisco adjusts its clocks and the difference becomes 19 hours. Anything scheduled across that date needs checking again.
Full clock-change dates: Daylight Saving Time in the United States · Daylight Saving Time in Australia.
San Francisco today
Sydney today
Frequently Asked Questions
What is the time difference between San Francisco and Sydney?
Sydney is currently 18 hours ahead of San Francisco. That gap becomes 19 hours on Sunday, November 1, 2026, when San Francisco changes its clocks.
How many hours ahead is Sydney from San Francisco?
Sydney is 18 hours ahead of San Francisco. Looking at it the other way, San Francisco is 18 hours behind Sydney.
What time is it in Sydney when it is 9:00 AM in San Francisco?
When it is 9:00 AM in San Francisco, it is 3:00 AM the next day in Sydney.
Is Sydney ahead of or behind San Francisco?
Sydney is 18 hours ahead of San Francisco. Sydney reaches each point in the day first, so its working day is already finishing while San Francisco is still getting started.
What is the best time to call between San Francisco and Sydney?
Between 3:00 PM and 5:00 PM San Francisco time, which is 9:00 AM to 11:00 AM in Sydney. Both cities are inside normal business hours during that window.
Does the time difference between San Francisco and Sydney change during the year?
Yes. Both cities observe Daylight Saving Time, and they do not always switch on the same date, so the gap between them shifts during the year. It changes to 19 hours on Sunday, November 1, 2026.
What time zones are San Francisco and Sydney in?
San Francisco uses the America/Los_Angeles time zone, currently PDT (UTC-7:00). Sydney uses Australia/Sydney, currently AEDT (UTC+11:00).