That is a pretty broad question. It depends what you are time managing. Is it personal time or a project of some sort. There are accepted practices for managing time on formal projects using various Gant scheduling tools.
If you are talking personal tasks or a combination I think you will find that there are a million different ways people tackle this task.
Here's an interesting article: http://www.stevepavlina.com/articles/time-management.htm that also mentions some of the methodologies you have referenced.