Formal metadata: information and software

How to describe time periods

Dates

Dates are specified within Time_Period_Information.

A single day

  Single_Date/Time:
    Calendar_Date: A year or day

A discrete set of days

  Multiple_Dates/Times:
    Calendar_Date: A year or day
    Calendar_Date: Another year or day
    Calendar_Date: more if needed...

A range of days

  Range_of_Dates/Times:
    Beginning_Date: Starting year or day
    Ending_Date: Ending year or day

The dates should be written like YYYY (a four-digit year) if you only know the year, or YYYYMMDD (where MM is the month 1-12 and DD the day 1-31) if you know the day.

Times

You can add times too, but don't unless you really need to be that precise. Write the times as HHMM or HHMMSS (HH is hour 0-24, MM minutes 0-59, SS seconds 0-59):

  Single_Date/Time:
    Calendar_Date: A year or day
    Time_of_Day: Time as HHMM or HHMMSS

  Range_of_Dates/Times:
    Beginning_Date: Starting year or day
    Beginning_Time: Time as HHMM or HHMMSS
    Ending_Date: Ending year or day
    Ending_Time: Time as HHMM or HHMMSS

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URL: http://(none)/tools/metadata/tools/doc/ctc/times.html
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Page Last Modified: Tuesday, 11-Dec-2012 15:52:24 EST