Javascript date, is this my error or did I find a bug?

Question

I have a section of simple Javascript in my application that has a link \"Add Day\", which adds 1 day to a date. It always works perfectly, except when the date gets to be

Answer 1

The problem is that you're adding the 24 hours to the date to add one day; Daylight Savings Time has thwarted you because 24 hours after 00:00 on November 7th will be 23:00 (for the second time) on November 7th.