The image depicts a night-time scene on a highway. The sky is dark, suggesting it's either after sunset or before sunrise. The bridge in the background has lights on, indicating it's likely a time of low natural light. The vehicles have their headlights and taillights on, which is required by law for visibility and safety during nighttime driving. There's a motorcyclist on the road, also adhering to safety standards by wearing a helmet. The absence of shadows and the presence of artificial lighting are key indicators of the time of day.
