> I tried to capture pretty much all the variations for datetime instances.
That is ideal, thanks. John On Mar 19, 2013, at 11:51, Aleksandar Jelenak - NOAA Affiliate <[email protected]> wrote: > On Tue, Mar 19, 2013 at 12:57 PM, John Graybeal <[email protected]> wrote: >> Thanks Aleksander for pushing in this direction. > > Thanks! > >> On the other hand, we should limit it to only the formats expressing an >> instance of date/time (meaning single date or date + time), and exclude the >> range or duration notations from this particular standard name. (Because >> those are inherently different quantities in different units.) Can add those >> as needed later. > > Here are the formats I proposed: > > <datetime> = <date> "T" <time> <timezone> ; > > <date> = YYYY "-" MM "-" DD | YYYY "-" DDD ; > > <time> = hh | hh ":" mm | hh ":" mm ":" ss | hh ":" mm ":" ss "." S > | hh ":" mm ":" ss "," S ; > > <timezone> = "" | "Z" | "+" hh | "+" hh ":" mm | "-" hh | "-" hh ":" mm > > Where: > > * "YYYY" is a four-digit year (0000-9999). > > * "MM" is a two-digit month of the year (01-12). > > * "DD" is a two-digit day of the month (01-31). > > * "DDD" is a three-digit ordinal day of the year (001-366). > > * "hh" is a two-digit hour (00-23). > > * "mm" is a two-digit minute (00-59) > > * "ss" is a two-digit second (00-59). > > * "S" is one or more digits representing a decimal fraction of the > second. > > * The value of any designator when not specified is zero. > > * If <timezone> is ommitted the default value is "Z". > > Would you like more added? I tried to capture pretty much all the > variations for datetime instances. > > -Aleksandar > _______________________________________________ > CF-metadata mailing list > [email protected] > http://mailman.cgd.ucar.edu/mailman/listinfo/cf-metadata > ---------------- John Graybeal <mailto:[email protected]> phone: 858-534-2162 Product Manager Ocean Observatories Initiative Cyberinfrastructure Project: http://ci.oceanobservatories.org Marine Metadata Interoperability Project: http://marinemetadata.org _______________________________________________ CF-metadata mailing list [email protected] http://mailman.cgd.ucar.edu/mailman/listinfo/cf-metadata
