Legal deadlines are specific dates by which certain actions must be taken in legal proceedings. These deadlines can include filing documents, responding to motions, or completing discovery. Missing a legal deadline can result in penalties, such as losing the right to present a case or having a claim dismissed. Different types of cases, such as civil lawsuits or criminal cases, have their own unique deadlines governed by laws and court rules. It's essential for individuals and attorneys to keep track of these deadlines to ensure that their rights are protected and that they comply with the legal process.