If any of us could master time, then we would be unstoppable.
For some people just using a pomodoro timer, or having a simple task management list/todo list; Is all they need to be productive.
However for the rest of us humans, we need more help than just that. Managing our time is also crucial for people who want to become polymaths. Here are the top tools in this category!
#5 - Focumon
A gamified way for you to manage your time, as if you had your own Tamagotchi. There is even a multiplayer mode, so that you can stayed focused with your friends and peers.

#4 - Making Today

A unique tool that unifies and displays your information from many apps/sources all into one place.
Seemingly a lot of the time we actually waste so much time just context switching between apps or interfaces. This shaves that down a ton.
#3 - Obsidian with the Day Planner and Reminder Plugins
Bonus if you include the "Journals" plugin for the mini calendar as well. The ability to have somewhat of a similar experience to the last tool, but built into the knowledge management app you may already use (Obsidian).
I've been saying for a while now that Obsidian is the closest we have to an all in one tool. The bottom part of the image is that of the Day Planner plugin.

No image for the reminder plugin, but that is just want it says. Simply a way for you to add reminders to certain pages/tasks.
#2 - Hootz
A more optimized approach to the unified aforementioned interface. Combining your tasks and goals, with the day planner calendar right next to it.

I don't normally include many images in these posts, but I think for this type of tools. That it is necessary to visualize more.
Honorable Mention: TimeMaster
I didn't feel that this tool stood alone on this list, as it is mostly just a data interface. However if you had a ton of data pumping through your knowledge/project management systems. This could be a powerful way for you to visualize.
#1 - Rize

Probably the MOST data rich tool on this list.
Going from calendar and task focused time management, to literally measuring every minute of your day.
This is overkill for most people, but given the topic of this post. I felt that it lead the way for time managing. Keeping track of literally everything!
Find the right tool for YOU:

This is a link to a page that has the database within, and you can sort by tag for time management tools if you need to look around!
