Enable Time Card
To use the Time Card on a project, go to Project Settings > Settings > Scroll down and check "Enable Time Cards"
Note the option to “Notify members when time cards are waiting for submission”.
Configure Time Card
Time classifications are set at an organization level; as an organization admin, go to the organization settings, and under “Time Card > Time Classification” on the left panel, you can add and delete any time classifications required.
Time classifications are available across all projects where the Time Card is in use.