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Time difference between San Diego and Rome
San Diego
—
Rome
—
Rome is 9 hours ahead of San Diego right now.
Does the gap change?
The gap isn't fixed. San Diego and Rome both use daylight saving time, but they change their clocks on different dates, so the difference moves during the year:
- From around October 25, 2026: Rome ahead by 8 hours
- From around November 2, 2026: Rome ahead by 9 hours
- From around March 15, 2027: Rome ahead by 8 hours
- From around March 28, 2027: Rome ahead by 9 hours
Best time to meet
Normal office hours in Rome and San Diego don't overlap. The most workable window is 7 AM to 1 PM in San Diego, which is 4 PM to 10 PM in Rome, with one side starting early or finishing late.
For a recurring meeting, it's fairest to rotate which city takes the inconvenient slot.
City details
San Diego to Rome, hour by hour
| San Diego | Rome | ||
|---|---|---|---|
| 12 AM | Night | 9 AM | Work hours |
| 1 AM | Night | 10 AM | Work hours |
| 2 AM | Night | 11 AM | Work hours |
| 3 AM | Night | 12 PM | Work hours |
| 4 AM | Night | 1 PM | Work hours |
| 5 AM | Night | 2 PM | Work hours |
| 6 AM | Night | 3 PM | Work hours |
| 7 AM | Early or late | 4 PM | Work hours |
| 8 AM | Early or late | 5 PM | Early or late |
| 9 AM | Work hours | 6 PM | Early or late |
| 10 AM | Work hours | 7 PM | Early or late |
| 11 AM | Work hours | 8 PM | Early or late |
| 12 PM | Work hours | 9 PM | Early or late |
| 1 PM | Work hours | 10 PM | Night |
| 2 PM | Work hours | 11 PM | Night |
| 3 PM | Work hours | 12 AM (Thu) | Night |
| 4 PM | Work hours | 1 AM (Thu) | Night |
| 5 PM | Early or late | 2 AM (Thu) | Night |
| 6 PM | Early or late | 3 AM (Thu) | Night |
| 7 PM | Early or late | 4 AM (Thu) | Night |
| 8 PM | Early or late | 5 AM (Thu) | Night |
| 9 PM | Early or late | 6 AM (Thu) | Night |
| 10 PM | Night | 7 AM (Thu) | Early or late |
| 11 PM | Night | 8 AM (Thu) | Early or late |
Based on today's clocks. Work hours are 9 AM to 5 PM.