 
                             210 minutes
                                        210 minutes                                     
                             180 minutes
                                        180 minutes                                     
                             2 hours
                                        2 hours                                     
                             3 to 4 hours
                                        3 to 4 hours                                     4 hours
                                        4 hours                                     
                             6 hours
                                        6 hours