who is "him"? but whoever this is, the good techniques that can be suggested are:
i have 4 just in case.
Focusing on the important tasks – Picking the tasks that make a bigger impact to use the time we have efficiently.
Organizing a work environment – Creating the optimal working conditions and getting rid of distractions.
Using time tracking software – what a better way to approach time management than with time tracking software? It makes you aware of how you spend you time so that you can spend it more efficiently.
Training browser discipline – making sure that you don’t spend your productive time on social media is as important as finding a silent environment to work in.