Los Angeles is typically 12 hours behind Dubai. When it's 3:00 PM in Dubai, it's 3:00 AM in Los Angeles. Dubai does not observe daylight saving time, while California does.
During US daylight saving time (mid-March to early November), the difference is 11 hours. During US standard time (November to March), it's 12 hours.
Optimal meeting window: 5:00 AM - 7:00 AM Los Angeles time (5:00 PM - 7:00 PM Dubai). This catches late afternoon/evening in Dubai while being early morning in LA.
Note: Dubai's work week runs Sunday to Thursday, with Friday and Saturday as the weekend.