Time Difference Between Las Vegas and London: Complete Guide

Planning a call, meeting, or trip between Las Vegas and London? Understanding the time difference is essential, but it changes throughout the year due to Daylight Saving Time transitions.

Standard Time Difference

During standard time (early November to mid-March), Las Vegas operates on Pacific Standard Time (PST, UTC-8) while London uses Greenwich Mean Time (GMT, UTC+0). This creates an 8-hour difference. When it's noon in Las Vegas, it's 8:00 PM in London.

Daylight Saving Time Difference

During daylight saving periods (mid-March to early November), both regions shift clocks forward. Las Vegas moves to Pacific Daylight Time (PDT, UTC-7) and London to British Summer Time (BST, UTC+1). The difference narrows to 7 hours. Noon in Las Vegas becomes 7:00 PM in London.

Key Transition Dates

• US switches to DST: Second Sunday in March
• UK switches to BST: Last Sunday in March
• US returns to standard time: First Sunday in November
• UK returns to GMT: Last Sunday in October

Note there are brief periods each year (mid-to-late March and late October to early November) when the difference temporarily becomes 8 hours again due to the staggered transition dates.