Ask HN: Points or hours for time tracking and estimation?

I've been meaning to try and get better at estimating my work, but I figured I'd start tracking to figure out exactly how long I take on things to begin with. I've been on the fence of whether to track by time or hours so figured I'd reach out to the community to see what people feel as a good pick now? Whether it be on a team, individual, or what have you. How do you track progress? What do you like or dislike? And what kind of software (or nontechnical system) do you help manage the data?