1. for every post, I suggest storing value of time() into Sqlite
This is the usual for storing into databases. Unix timestamp.
Because then later is easy to use: date('date-format', Sqlite-TIME)
to get how you want to display
2. make 'Wanted format' a CONFIG setting: $config['date-format']
3. change in functions to use:
$date = date( $config['date-format'], Sqlite-TIME);
This will create any wanted date/time format to display.
Regards
halojoy