Ride-hailing platforms in Vietnam serve a broad range of daily travel needs, from early morning trips to late-night journeys, yet male and female riders tend to gravitate toward different windows of the day. Understanding these usage patterns helps ride-hailing operators, advertisers, and fleet managers allocate driver supply, promotional budgets, and in-app campaigns more precisely. Gender-based timing preferences create distinct opportunities to target riders with relevant offers at the moments they are most active on the platform.