thanks DHH

partner.md

@@ -19,11 +19,17 @@ The initial user is set as admin on the account. The attributes for creation are
   <tr><td>subdomain</td><td>String</td><td>Required</td></tr>
   <tr><td>email</td><td>String</td><td>Required</td></tr>
   <tr><td>name</td><td>String</td><td>Required</td></tr>
-  <tr><td>time_zone</td><td>String</td><td>Required</td></tr>
+  <tr><td>time_zone</td><td>String</td><td>Required. See info below.</td></tr>
   <tr><td>country_code</td><td>String</td><td>Required. ISO 3166-1 alpha-2.</td></tr>
   <tr><td>locale</td><td>String</td><td>Required. Supported locales: 'en', 'sv' and 'nb'. Default: 'en'.</td></tr>
 </table>
 
+##### Time zone
+
+Currently a custom time zone naming is used. Please see [this list](https://github.com/rails/rails/blob/v7.1.3.4/activesupport/lib/active_support/values/time_zone.rb#L33) of used names and their mappings.
+
+In the future this will become more standard compliant.
+
 #### User Attributes
 
 <table>