Kim Kardashian West out and about in Tokyo. Picture: Instagram

Kim Kardashian West believes she's successful because she's always on time.

The 'Keeping Up With the Kardashians' star believes her career is so successful because she sticks to five principles - good time keeping, confidence, only doing things she's passionate about, owning up to her mistakes and making time for herself.

READ: Kim Kardashian West surprised by #KUWTK's success

Writing on her app, she said: "While there's no single recipe for success, I found that sticking to these principles helped me build my businesses and achieve my dreams.

"There are NO excuses for being late, not showing up or not getting your work done. Everyone has other things going on, so if you commit to something, you need to be on time and respectful. 

"If you find something you're really passionate about, figure out a way to make that your job. You'll work harder if your heart and soul is in your career.

👅

A post shared by Kim Kardashian West (@kimkardashian) on

"Whether it's posting on my own social channels or telling my perspective on our show, I like to be confident in my own voice.

"If I do make a mistake, I learn from it and move on. Don't blame other people!

"By taking time for yourself, you'll find inspiration in unexpected places and you won't exhaust yourself. If you're too burnt out on work, you'll half-ass things. (sic)"

And it seems Kim's tips are proven to have a success rate as she's recently been announced as as an executive producer in conjunction with Lionsgate on comedy series 'You Kiddin' Me', which has been commissioned to air on Facebook.

The social media site will show 10 episodes of the programme, which is "inspired by Kardashian family antics" as seen in their E! reality series.

The show will feature the kids of celebrities being put in charge of their own parents who must do everything their children tell them.

The show will also invite Facebook users to play jokes on their favourite stars.

Announcing the project, the 37-year-old star said: "I know from first-hand experience that children are wise beyond their years and can come up with the craziest things, so imagine how funny it will be to see them make all the decisions."