Its or it's? What is the difference between its and it's?

Here is the explanation: its (without an apostrophe) is a possessive pronoun, like his or her, for nouns that don't have a defined gender. In contrast, it's (with an apostrophe) is the shortened form, or contraction, of it is or it has.

Which is correct it's or its?

It's is a contraction and should be used where a sentence would normally read "it is." The apostrophe indicates that part of a word has been removed. Its with no apostrophe, on the other hand, is the possessive word, like "his" and "her," for nouns without gender.

Example of its:

The word, 'it's', with an apostrophe, is a contraction of 'it is' or 'it has'. When you want to say 'it is' or 'it has', use an apostrophe. Guide to Grammar and Style Examples: It's a nice day. It's your right to refuse the promotion.