Aug. 10 may seem like any normal day to some, but to those with lip kits and dogs named Norman, it's a very important day of celebrating the birth of teen queen Kylie Jenner.。

The mogul's latest product is a 2017 calendar filled with photographs of the makeup maven shot by Terry Richardson. Penciled in throughout the pages are notable dates, but it turns out Jenner ended up getting at least one key date wrong: her birthday. 。

SEE ALSO:People are accusing Kylie Jenner of Photoshopping her butt to sell jeans 。

SEE ALSO:People are accusing Kylie Jenner of Photoshopping her butt to sell jeans
。

Tweet may have been deleted。

Fans were quick to point out that on multiple calendars, Jenner messed up arguably the most important day of the year by ten whole days. Rather than marking Aug. 10 as the day she turns 20, a note is scrawled on Aug. 20. Awkward. 。Mashable Top StoriesStay connected with the hottest stories of the day and the latest entertainment news.Sign up for Mashable's Top Stories newsletter 。By signing up you agree to our Terms of Use and Privacy Policy. 。

By signing up you agree to our Terms of Use and Privacy Policy.。

Thanks for signing up!。

Tweet may have been deleted 。

Tweet may have been deleted。

Tweet may have been deleted 。

---

But don't worry about Bambi et al. According to TMZ the birthdays of her pups are included, and accurate.。

---

Jenner has yet to publicly acknowledged the error. Here's to more time bending and postponing birthdays of natural body parts in 2017.。

---

Featured Video For You 。Kendall Jenner is 21。