What is the best time to post self-improvement content on Youtube?

I will start posting self-improvement and philosophy related ~10-minute-long youtube videos in the Hungarian language. My initial time investment will be around 10 to 15 hours a week which I'll spend on this, and at the start, I'd want to start posting only 1 video a week and move to 2-3 videos a week in the future once I have some more experience.
My question would be towards creators in the same niche: if you were to post one video a week, what do you think is the best time to post this kind of content? I'm interested in both which day, and at which time of the day it would be best. I know this is a question doesn't necessarily have only one good answer, but before posting I thought I'd like to do some digging so I at least have a vague idea of where to start with this.
Any feedback is appreciated, also in the form of sending me to another forum/discord/whatever where it is more likely that the question is answered.

Thank you for reading this!