Feeling disconnected from your immediate experience such as daydreaming and unaware of the passage of time is called

This feeling is called disassociation. Disassociation is described as being detached from one's self and believed to be a type of coping mechanism. Additionally, psychologists associate disassociation to a trauma experienced by a person in their childhood. It is believed that if a mind of a person could no longer handle stress, it finds a way to disconnect from reality. However, disassociation has a shorter duration than psychosis, where there is a complete loss of contact with reality.