Holiday Calendar

Can anyone suggest a place to download a list of holidays in .XML or .CSV or whatever format that I can download from the internet? I guess I mean the actual observance day. Is the market open on this day is the question I am trying to get at.

A world holiday calendar list would be great, but US is the only one I __really__ need.

 

There are actually algorithms for this, I worked on one at work a few months ago.

 

Thanks.

I actually rolled my sleeves up last night and implemented this algorithm. While it works 95% of the time, if you go back far enough it gets very hairy and lookup is better.

Someone actually PMed me an extremely useful document. Thanks you know who you are.

 

i dont know about a list but quantlib has an ok holiday/calendar chunk of code.

quantlib.org