Las Vegas is typically 17 hours behind Tokyo. When it's 1:00 AM in Tokyo, it's 8:00 AM the previous day in Las Vegas. Japan does not observe daylight saving time, but Las Vegas does.
During US daylight saving time (March to November), the difference is 16 hours. During US standard time (November to March), the difference increases to 17 hours.
Optimal meeting window: 3:00 AM - 5:00 AM Las Vegas time (7:00 PM - 9:00 PM Tokyo, or 8:00 PM - 10:00 PM in winter). Very early morning Las Vegas catches evening Tokyo.
Las Vegas and Tokyo share a love for entertainment and nightlife. Japanese tourists are among the top international visitors to Las Vegas, and the city hosts major Japanese gaming and tech conferences like CES.