Dissociative Identity Disorder Awareness Day

Dissociative identity disorder (DID), previously known as multiple personality disorder, is a mental health condition characterized by the presence of two or more distinct identities or personalities, also known as alters, that take control of an individual's behavior and thoughts at different times.

Individuals with DID often report experiencing gaps in their memory for important personal information or events, particularly those that are associated with trauma. 

No, Multiple Personality Day is not associated with Dissociative Identity Disorder (DID). It's a lighthearted observance on March 5th meant for celebrating various facets of one's personality, distinct from the clinical condition of DID.