San Diego is currently 9 hours behind Rome.

Best times to meet

Standard 9 AM – 5 PM hours in Rome and San Diego 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 Rome, or a 6–8 PM meeting in San Diego.

Quick conversion table

Daylight saving

Heads up: the gap will narrow to 8 hours around October 29, when one of the cities shifts for daylight saving. Double-check meeting times scheduled across that date.

Frequently asked questions

How many hours ahead is San Diego than Rome?

San Diego is 9 hours behind Rome.

What time is 9 AM in Rome in San Diego?

9:00 AM in Rome is 12:00 AM in San Diego.

Do Rome and San Diego observe daylight saving?

Heads up: the gap will narrow to 8 hours around October 29, when one of the cities shifts for daylight saving. Double-check meeting times scheduled across that date.

When is the best time to call San Diego from Rome?

Rome and San Diego business hours don't overlap. The closest options are early mornings in Rome or late evenings, when one side stretches outside 9–5.

Other conversions

• Rome to New York
• Rome to Los Angeles
• Rome to San Francisco
• Rome to Chicago
• Rome to Denver
• Rome to Toronto
• London to New York
• London to Tokyo
• Los Angeles to New York
• London to Los Angeles