Getting start date of the first week of the year

Following function can be used to get the start date of the first week of the year.

public static DateTime GetStartDaysOfTheYear(int year)
    {
        DateTime startOfTheYear = new DateTime(year, 1, 1);
        return startOfTheYear.AddDays(-(int)startOfTheYear.DayOfWeek);
    }

Call it like below

Response.Write(GetStartDaysOfTheYear(2014).ToString());

Here the parameter of this function is year.