[Quantlib-users] European call option

[Svenson J. <joh...@ho...>]

Hello,
	I am new to QuantLib and have a Question. When I try to price a European 
Call option I have to choice for time to maturity and risk free rate. Now do 
these input variables change from country to country? Different Countries 
have different calendars for interest rates (maybe I am wrong) and this 
should affect the price, right? Also the time to maturity, is there an easy 
way to determine that in a fraction off a year when I have two dates?



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