There is no overlap between 09:00–18:00 working days in these two places.
Clock changes in Las Vegas and Rome
Las Vegas
Pacific Daylight Time (PDT)
Next clock change Sun 1 Nov 2026 (UTC−7 → UTC−8)
Rome
Central European Summer Time (CEST)
Next clock change Sun 25 Oct 2026 (UTC+2 → UTC+1)
Time difference between Las Vegas and Rome today
Today Rome is 9 hours ahead of Las Vegas. When it is 09:00 in Las Vegas, it is 18:00 in Rome. Las Vegas is on Pacific Daylight Time (PDT); Rome is on Central European Summer Time (CEST).
When the Las Vegas to Rome time difference changes
For most of the year Rome is 9 hours ahead of Las Vegas. From 25 October to 31 October 2026, Rome is 8 hours ahead of Las Vegas instead, because the two places change their clocks on different dates. Meetings booked by the usual gap land an hour off in those weeks.
Dates
Rome vs Las Vegas
Length
29 March 2026 to 24 October 2026
9 hours ahead
210 days
25 October 2026 to 31 October 2026
8 hours ahead
7 days
1 November 2026 to 31 December 2026
9 hours ahead
61 days
1 January 2027 to 13 March 2027
9 hours ahead
72 days
14 March 2027 to 27 March 2027
8 hours ahead
14 days
28 March 2027 to 30 October 2027
9 hours ahead
217 days
31 October 2027 to 6 November 2027
8 hours ahead
7 days
7 November 2027 to 31 December 2027
9 hours ahead
55 days
When Las Vegas and Rome are both at work
When Rome is 9 hours ahead of Las Vegas: no shared 09:00 to 17:00 hours; try 08:00 in Las Vegas (17:00 in Rome).
When Rome is 8 hours ahead of Las Vegas: no shared 09:00 to 17:00 hours; try 09:00 in Las Vegas (17:00 in Rome).
Frequently asked questions about Las Vegas and Rome time
What time is it in Rome when it is 9:00 AM in Las Vegas?
18:00 today; Rome is 9 hours ahead of Las Vegas.
Does the time difference between Las Vegas and Rome change?
Yes. It is usually 9 hours ahead, but changes when one side moves its clocks: 8 hours ahead from 25 October to 31 October 2026; 8 hours ahead from 14 March to 27 March 2027.