About 30 minutes. Driving 50 kilometers depends on speed and road conditions. At an average speed of 60 km/h, it takes half an hour. At 50 km/h, it takes 1 hour; at 25 km/h, 2 hours; at 10 km/h, 5 hours; and at 1 km/h, 50 hours.
If it's entirely on a highway with no traffic jams or traffic lights, it takes about thirty minutes (half an hour). If driving in the city with various traffic lights, speed limits, and congestion, it takes about an hour.
Strictly speaking, this question is difficult to answer accurately, consistently, or standardly because too many objective factors can influence the result. Factors like road conditions, the driver's habits, and the vehicle's performance can significantly affect the outcome. Therefore, in reality, the time depends on the road conditions and driving speed.
Even under the same road conditions, different drivers may yield different results because everyone has unique driving habits. When driving, it's essential to follow traffic rules and avoid violations, especially speeding. Speeding not only endangers others' lives and health but also seriously threatens your own.