webservice for Daylight Saving

I am looking for a web service that accepts a (date, Latitude Degrees, and Longitude Degrees) for a certain City,and returns if Daylight Saving is on for that city in the giv开发者_JAVA技巧en date or not.

any help please?

thanks,

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This is what i've found on dst webservice.

You could call it using http://www.earthtools.org/sun/< latitude>/< longitude>/< day>/< month>/< timezone>/< dst>

Good luck with this ;)!