Start from the days you already use
Look at the last month of public uploads before you invent a new schedule. The upload-time tool plots those timestamps. If you publish on Tuesdays, the next month should include Tuesdays. A plan that assumes you will edit every night will sit unused.
Give each slot one job
A month of videos is easier when each one has a single job: teach a step, show a result, or answer a question the last video raised. Write the title the way it will appear on YouTube, not as a working filename. If you cannot say the payoff, that slot is not ready.
Build the four weeks in the content calendar. Copy the markdown or download the .ics file into the calendar you already use. The tool runs in the browser and does not post the videos.
Leave room to fix last month
Before you fill every slot with new ideas, run the mini-audit and spend one slot rewriting a title or description that is already public. New videos on top of vague old ones do not teach search what the channel is.
When a saved calendar is worth paying for
The free calendar is a blank plan you fill in. Paid plans add a calendar tied to your channel's own cadence, plus thumbnail briefs and a video report. That is the point of upgrading: the dates follow the channel, not a generic week. You still have to film.
Questions
How many videos should a month include?
The number you will actually publish. Four finished videos are a plan. Thirty titles you do not film are a list.
Should I plan around a best time I read online?
No. Use the weekdays already on your channel, then check YouTube Studio for when your viewers are on YouTube. A public chart is someone else's audience.
Does the free calendar post to YouTube?
No. It builds titles and dates in the browser and can download an .ics file. You publish the videos yourself.