How can I invest in time?

I'm curious, how can one actually invest in time? It seems like an abstract concept that's hard to quantify and put money behind. Is there a way to strategically allocate resources or make decisions that will yield a return on investment in terms of time? Perhaps there are certain skills or habits that can be developed to maximize the value of each moment? I'm eager to learn more about how to approach this unconventional form of investment and see if it's something that can truly benefit my financial and personal growth.