How to download and setup clock
Open terminal and run command
                                            git clone https://github.com/symfony/clock.git
                                        
                                        git clone is used to create a copy or clone of clock repositories.
                                        You pass git clone a repository URL. it supports a few different network protocols and corresponding URL formats.
Also you may download zip file with clock https://github.com/symfony/clock/archive/master.zip
Or simply clone clock with SSH
                                            [email protected]:symfony/clock.git                                    
                                    If you have some problems with clock
You may open issue on clock support forum (system) here: https://github.com/symfony/clock/issuesSimilar to clock repositories
Here you may see clock alternatives and analogs
symfony grav ilios dragula rome horsey insignia jkanban Croppr.js EasyAdminBundle NelmioApiDocBundle SensioFrameworkExtraBundle LexikJWTAuthenticationBundle VichUploaderBundle DoctrineMigrationsBundle framework-bundle LiipImagineBundle FOSElasticaBundle SncRedisBundle KnpMenuBundle twig-bundle swiftmailer-bundle security-bundle web-profiler-bundle NelmioCorsBundle CraueFormFlowBundle SensioGeneratorBundle web-server-bundle LiipFunctionalTestBundle debug-bundle