Rules - show information after certain time
If you want to achieve it with rules, you can do it with the following steps:


Add new rule
React on event: Content is viewed (under Node section)
Add new condition: Data comparison
Data to compare: node:created
Operator: 'is lower than'
Data value: Switch to the direct input mode and put '-2 weeks', or '-14 days'
Add new action: 'Show a message on the site' (under System section)
Put your message in as value, and select the type of the message. E.g. 'Status'