A system alerts a user that a vehicle (102) will arrive at a point of interest within a predetermined time interval and includes a vehicle -mounted assembly (104) and a remote assembly (106). The vehicle -mounted assembly includes a location - determining device (108) connected to the vehicle for determining the location of the vehicle, and a first communication device (112) connected to the location - determining device for sending data comprising the location of the vehicle over a communications network. The remote assembly includes a second communication device (114) for receiving the data from the first communication device (112) over a communications network, and a computing device (116) in communication with the second communication device for computing a time - geofence, and for alerting the user. The time - geofence corresponds to a boundary that if the location of the vehicle (102) is within the boundary the vehicle will arrive at the point of interest at earlier than the expiration of a predetermined interval, and if the vehicle is outside the boundary the vehicle will arrive at the point of interest at later than the expiration of a predetermined interval.La présente invention concerne un système qui alerte un utilisateur quun véhicule (102) arrivera à un point dintérêt dans un intervalle de temps prédéterminé et qui comprend un ensemble (104) monté dans un véhicule et un ensemble distant (106). Lensemble monté dans un véhicule comprend un dispositif (108) de détermination demplacement connecté au véhicule destiné à déterminer lemplacement du véhicule, et un premier dispositif (112) de communication connecté au dispositif de détermination demplacement destiné à envoyer des données qui comprennent lemplacement du véhicule sur un réseau de communications. Lensemble distant comprend un second dispositif (114) de communication destiné à recevoir les données en provenance du premier dispositif (112) de communication sur un réseau de communications, et un dispo
