Having a date in the URL is effective so long as the SEO friendly structure takes place before the date exactly how you mentioned "/dangers-of-sharing-KM-knowledge-01-11-15". If you change the order you run the risk of priority keywords being ignored "/**01-11-15-**dangers-of-sharing-KM-knowledge" . Also try to keep the URL short as the browser and Google will truncate the URL if it is too long which will defeat the purpose of it being visible for users. Will it hurt your SEO? ... no way, so long as you are not updating the URL when you update the page.
On a second note, the same does not apply for your titles as this is valuable real estate for primary keywords.
IDEAL : Your Primary Key Phrase | Your Secondary Key Phrase | Your Tertiary Key Phrase
IF YOU HAVE TO: Your Primary Key Phrase | Your Secondary Key Phrase - Your Company Name **NEVER : **Your Primary Key Phrase | Your Secondary Key Phrase - **01-11-15 **
Reason: The main reason we do not add it to the end of the title is because that space should be used for Keywords that best describe your page only. Even when it comes to you brand, I would rather replace the company name with a keyword if I can as Google in most cases already knows who you are.