"How much time should I spend on LinkedIn?"
We get asked this a lot of the time. There is no single answer that can be different as it will be unique to all of you, subject to what you want to get out of it and what your end goal is.
Sales Navigator can do a lot of the heavy lifting for you by setting up save searches which then keep you updated as and when things happen.
However, you can also create basic search alerts on LinkedIn too.
Opportunity does not waste time with those who are unprepared - Idowu Koyenikan