The Tour de France is a cycling race that is usually held during the day, but there are also some night races. In particular, night races are held for exceptional circumstances or special events. Here are some notable examples:
Critérium du Dauphiné:
A preliminary race to the Tour de France, where several night races are held. This is to give riders the experience of racing at night.
Opening event:
In some years, the opening event is held at night. For example, the opening time trial (Stage 1) in Düsseldorf, Germany in 2017 was held in the evening.
Special stages:
In some years, certain stages are held at night. These are usually held in cities, and are intended to make it easier for spectators to watch. These races are held in fully-equipped lighting systems, and the safety of the riders is the top priority.
Night races tend to be more complex and challenging than day races. This is due to the limited visibility in dark environments and the different climatic conditions compared to daytime. However, night racing has a special charm and provides a unique spectacle for spectators.