[[ NB: if you're looking for systems to use in marking up dates in judicial opinions, you might take a look at
Dates are a surprisingly complicated topic, with many subtleties and variations. That is because almost any milestone in the process of hearing the case and carrying out its resolution can have a date associated with it, as can any of the documents generated along the way. Every case will have a date of decision. Most appellate cases will have an argument or hearing date. Beyond that the varieties are practically infinite:
- filing dates of many kinds, indicating when briefs, motions, and other relevant documents were submitted
- posting dates, indicating the date on which the case was published
- a variety of effective dates establishing (eg.) deadlines for remedies to be carried out
- signature dates, indicating the date a decision was signed, and possibly the same as the date of decision or one of the effective dates mentioned above.