Template:Certification Table Entry/Sales/HongKongPeriod
This helper template calculates periods for Belgian certifications, as stated in the following source:
-  - certification until 2006
-  - certification from October 2007
-  current certification.  showing it was active on Jan 2008,  showing it wasn't on Dec 2007, so change occurred Jan 2008.
There is no data for the interim period
|Before 2006||Before October 2007||Before 2008||From 2008|
Returns 0 if the data provided is insufficient
|The above documentation is transcluded from Template:Certification Table Entry/Sales/HongKongPeriod/doc. (edit | history)|
Editors can experiment in this template's sandbox (create | mirror) and testcases (create) pages.
Please add categories to the /doc subpage. Subpages of this template.