Skill time doesnt match between Glitch HQ and the game and skills page.
Glitch HQ says Potionmaking 3 will take 22 days 11 hours, but the game and skills page on the site say 52 days 12 hours. I have not yet started the skill.
Screenshots: Glitch HQ In Game Skills Page
maybe it is a bug in the HQ app. the difference is exactly "one month". maybe HQ is showing the # of "days" (and not showing "1 month") instead of the "total days".
anyway, I think you should start buying Brain Upgrade cards.... :(