San Francisco to Rome Time Difference
Rome is 9 hours ahead of San Francisco. When it's 05:57:35 AM in San Francisco, it's 02:57:35 PM in Rome.
How Many Hours Ahead Is Rome From San Francisco?
Rome is 9 hours ahead of San Francisco. So San Francisco is 9 hours behind Rome 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 6:00 PM in Rome. The gap is not fixed all year: it becomes 8 hours on Sunday, October 25, 2026, when Rome changes its clocks.
Best Time to Call San Francisco and Rome
Standard 9-to-5 hours in San Francisco and Rome never overlap, so someone has to take the call outside their working day. The most workable window is 7:00 AM to 1:00 PM in San Francisco, which is 4:00 PM to 10:00 PM in Rome.
both at work San Francisco only Rome 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 Rome.
Common Times Converted
San Francisco time on the left, Rome time on the right.
San Francisco to Rome: 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 | Rome | Working hours |
|---|---|---|
| 12:00 AM | 9:00 AM | Rome only |
| 1:00 AM | 10:00 AM | Rome only |
| 2:00 AM | 11:00 AM | Rome only |
| 3:00 AM | 12:00 PM | Rome only |
| 4:00 AM | 1:00 PM | Rome only |
| 5:00 AM | 2:00 PM | Rome only |
| 6:00 AM | 3:00 PM | Rome only |
| 7:00 AM | 4:00 PM | Rome only |
| 8:00 AM | 5:00 PM | — |
| 9:00 AM | 6:00 PM | San Francisco only |
| 10:00 AM | 7:00 PM | San Francisco only |
| 11:00 AM | 8:00 PM | San Francisco only |
| 12:00 PM | 9:00 PM | San Francisco only |
| 1:00 PM | 10:00 PM | San Francisco only |
| 2:00 PM | 11:00 PM | San Francisco only |
| 3:00 PM | 12:00 AM next day | San Francisco only |
| 4:00 PM | 1:00 AM next day | San Francisco only |
| 5:00 PM | 2:00 AM next day | — |
| 6:00 PM | 3:00 AM next day | — |
| 7:00 PM | 4:00 AM next day | — |
| 8:00 PM | 5:00 AM next day | — |
| 9:00 PM | 6:00 AM next day | — |
| 10:00 PM | 7:00 AM next day | — |
| 11:00 PM | 8:00 AM next day | — |
Understanding the San Francisco – Rome Time Difference
San Francisco runs on America/Los_Angeles, currently PDT (UTC-7:00). Rome runs on Europe/Rome, currently CEST (UTC+2:00). The gap of 9 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, October 25, 2026, when Rome adjusts its clocks and the difference becomes 8 hours. Anything scheduled across that date needs checking again.
Full clock-change dates: Daylight Saving Time in the United States.
San Francisco today
Rome today
Frequently Asked Questions
What is the time difference between San Francisco and Rome?
Rome is currently 9 hours ahead of San Francisco. That gap becomes 8 hours on Sunday, October 25, 2026, when Rome changes its clocks.
How many hours ahead is Rome from San Francisco?
Rome is 9 hours ahead of San Francisco. Looking at it the other way, San Francisco is 9 hours behind Rome.
What time is it in Rome when it is 9:00 AM in San Francisco?
When it is 9:00 AM in San Francisco, it is 6:00 PM in Rome.
Is Rome ahead of or behind San Francisco?
Rome is 9 hours ahead of San Francisco. Rome 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 Rome?
Standard business hours in San Francisco and Rome do not overlap at all, so one side has to step outside the 9-to-5. The most workable window is 7:00 AM to 1:00 PM in San Francisco, which is 4:00 PM to 10:00 PM in Rome.
Does the time difference between San Francisco and Rome 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 8 hours on Sunday, October 25, 2026.
What time zones are San Francisco and Rome in?
San Francisco uses the America/Los_Angeles time zone, currently PDT (UTC-7:00). Rome uses Europe/Rome, currently CEST (UTC+2:00).