Playing with extension methods

ExensionMethods.cs

public static class MyExtensions
{
	public static System.TimeSpan Months(this Int32 x)
    {
        return System.DateTime.Today.AddMonths(x) - System.DateTime.Today;
    }

	public static System.TimeSpan Years(this Int32 x)
    {
		return System.DateTime.Today.AddYears(x) - System.DateTime.Today;
    }

	public static System.TimeSpan Years(this Double x)
	{
	    return System.DateTime.Today.AddDays(x) - System.DateTime.Today;
	}

	public static System.DateTime Ago(this System.TimeSpan x) 
	{
		return System.DateTime.Now.Add(x.Negate());
	}

	public static System.DateTime FromNow(this System.TimeSpan x) 
	{
		return System.DateTime.Now.Add(x);
	}

	public static System.DateTime FromToday(this System.TimeSpan x) 
	{
		return System.DateTime.Today.Add(x);
	}
}   

void Main()
{
	
	Console.WriteLine(3.Months().Ago());
	Console.WriteLine(3.Years().FromToday());
}