The problem of adding times is interesting. This script generates a train schedule by adding the time of the trip to the departure time. Because of possible carries to the hours time is shown in military format. Works in most browsers.
Simply click inside the window below, use your cursor to highlight the script, and copy (type Control-c or Apple-c) the script into a new file in your text editor (such as Note Pad or Simple Text) and save (Control-s or Command-s). The script is yours!!!