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This has to be specified as follows:

<div itemscope itemtype="http://schema.org/Place" itemid="#store">
  <link itemprop="http://www.w3.org/1999/02/22-rdf-syntax-ns#type" 
        href="http://purl.org/goodrelations/v1#Location" />
  <span itemprop="name">Hepp's Happy Burger Restaurant</span>
  <div itemprop="hasOpeningHoursSpecification" itemscope 
       itemtype="http://purl.org/goodrelations/v1#OpeningHoursSpecification">
Opening hours: Fridays
     <link itemprop="hasOpeningHoursDayOfWeek" 
           href="http://purl.org/goodrelations/v1#Friday" />
     <meta itemprop="opens" content="19:00:00">7:00 p.m. -
     <meta itemprop="closes" content="23:59:59">
  </div>
  <div itemprop="hasOpeningHoursSpecification" itemscope 
       itemtype="http://purl.org/goodrelations/v1#OpeningHoursSpecification">
     <link itemprop="hasOpeningHoursDayOfWeek" 
           href="http://purl.org/goodrelations/v1#Saturday" />
     <meta itemprop="opens" content="00:00:00">
     <meta itemprop="closes" content="02:00:00">2:00 a.m. (next day)
  </div>
</div>

Apologies for using Microdata syntax here; that was what I had as hand.

I.e., opening hours that cross midnight must be broken into two chunks, one opening hour specification for the first day, then closing at 23:59:59, and one for the next day of the week, opening ant 00:00:00.

A bar that opens every evening at 7.00 p.m. and closes at 2:00 a.m. the next day would then say for Mondays through Sundays:

opens 00:00:00, closes 02:00:00
opens 19:00:00, closes 23:59:59

You will need two gr:OpeningHoursSpecification nodes, because gr:opens and gr:closes have a cardinality of 1..1 in this case.

A consuming client should assume that if the shop closes for only 1 second, it is actually open without interruption.

This is the only way to model this scenario properly in GoodRelations, since otherwise, SPARQL queries for sub-intervals and other things would not work. 
For instance, someone checking at 0:30 am on the following Saturday for a bar that is open for at least another hour should find this place.

Also, it is not always obvious which specification is the right one for the next day, because they might be constrained by validFrom and validThrough.

Hope that helps.


Best wishes

Martin Hepp

On Sep 12, 2012, at 5:36 PM, László Török wrote:

> Hi,
> 
> Is there any recommendation how should one modell the following opening hours pattern:
> 
> Fri: 7pm - 2am (next day)
> 
> 
> The following seems a bit odd:
> <div rel="gr:hasOpeningHoursSpecification">
> 
>     
> <div typeof="gr:OpeningHoursSpecification">
>  Opening hours: Fri,
>      
> <div rel="gr:hasOpeningHoursDayOfWeek"
>  
>           
> resource="http://purl.org/goodrelations/v1#Friday"></div>
> 
>      
> <div property="gr:opens" content="19:00:00" datatype="xsd:time">7:00 p.m. - </div>
> 
>      
> <div property="gr:closes" content="02:00:00" datatype="xsd:time">2:00 a.m.</div>
> 
>     
> </div>
> 
>   
> </div>
> 
> it becomes confusing, if I want to specify multiple intraday time spans, which is common for restaurants:
> 
> e.g.  Mo-Fri: 10am - 3pm, 5pm - 11pm
> 
> Is there a compact way to represent this or should one provide two gr:OpeningHoursSpecification nodes to describe those.
> 
> There is a recommendation for schema.org: http://schema.org/LocalBusiness
> 
> Thanks!
> -- 
> László Török
> 
> _______________________________________________
> goodrelations mailing list
> goodrelations at ebusiness-unibw.org
> http://ebusiness-unibw.org/cgi-bin/mailman/listinfo/goodrelations



--------------------------------------------------------
martin hepp
e-business & web science research group
universitaet der bundeswehr muenchen

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