In the project editor the element 'delay' allows you to set a delay in Seconds after which the connected actuator(s) will be triggered. The delay is triggered if the sensors which are connected to the delay are triggered.
Please note that the test button for the delay has a timeout of 30 seconds, so please do use the 'Test' button for delays longer than 30 seconds. The project will also run with delays which are longer than 30 s.
In the project editor you can find the delay in the section 'Functions' in the subsection 'Other'.