Concrete time or date of a future or past action. In conjunction with the appropriate action this may indicate date of accessioning, acquisition, classification, transfer, or description. The date and time are recorded according to Representations of Dates and Times (ISO 8601). The date requires 8 numeric characters in the pattern yyyymmdd (4 for the year, 2 for the month, and 2 for the day). The time requires 8 numeric characters in the pattern hhmmss.f (2 for the hour, 2 for the minute, 2 for the second, and 2 for a decimal fraction of the second, including the decimal point). The 24-hour clock (00-23) is used.
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