The duration of a BIC lighter's burn time primarily depends on the frequency and duration of the individual lights. However, it is crucial to note that external factors such as wind gusts, altitude, and temperature can affect the longevity of the lighter's fuel. Therefore, in harsher conditions with increased wind or colder temperatures, the burn time may be slightly reduced. Nonetheless, on average, a BIC lighter will provide about 60 minutes of burn time, enabling the user to ignite countless flames for various purposes, whether it be starting a campfire, lighting candles, or even emergencies.