23 Matching Annotations
  1. Mar 2021
    1. Use “01” for an unknown or inexact month or day, and “00” for any unknown or inexact time portion.

      "Use a midpoint for any unknown portion. For instance, if only the year is known, use a date in the middle of the year, and if the datetime is known down to a day, use noon for the time."

  2. Feb 2021
  3. Nov 2020