opening-hours
This effort needs more work per the microformats process. It is incorrect to jump straight to a brainstorm proposal. Tantek 18:03, 17 February 2011 (UTC)
examples
Please see examples for how to research examples for a new format.
existing formats
Please create a separate page opening-hours-formats to document research into existing formats for publishing opening hours (if any).
brainstorming
Please create a separate page opening-hours-brainstorming, after the examples and formats research has been completed per the process, and add brainstorm proposals there.
simple class proposal
proposed Format:
<span class="operating-hours"> Tu-Sa 08:00-15:00; Sa 08:00-12:00 </span>
see it here: http://www.geodatacheck.com/p/2
Use a semicolon to separate the different days or or time ranges.
Use two letter english day names. Times are local times with leading zero
This is the format as used in openstreetmap.org for a node description with opening hours. Openstreetmap has very rigid semantics, so it makes sense to follow their format.