http://qs321.pair.com?node_id=1071821

oikool has asked for the wisdom of the Perl Monks concerning the following question:

the thing is im supposed to print out postpaid bill, that shall be issued everymonth. But suppose im subscribed to a plan on beginning of the month, i will be billed on 8th of everymonth.(As i have multiple billing dates: 8,20,31) And irrespective of the plans i subscribe later towards end of the month, i will be stilled be billed on 8th... i have tried capturing the system PC time, but havent been able to link time between thse mutiple billing dates. As i need to print out the bill even if i used the plan for a week or so. i'm kinda lost in the code.