date range comparison

I am looking for a way to have a date/time method where I have multiple drop downs

Month/ Day / Year -- Hour / am/pm

Month/ Day / Year -- Hour / am/pm

I am looking for maybe a jquery plugin that will take the first row and on update change the bottom row in a range 开发者_如何学Pythonof time. So if I picked 11pm on the first row, it would change "day" and "hour" and "am"

Has anyone found anything close to this?

I don't know if there's anything to directly and specifically address your problem, but Datejs will certainly help. According to the site, it is:

Comprehensive, yet simple, stealthy and fast. Datejs has passed all trials and is ready to strike. Datejs doesn’t just parse strings, it slices them cleanly in two.