will it recur fibonacci

fibonacci.go

package main

import (
    "fmt"
    "time"
)

func fibonacci(n int) int {

    var a int
    if n < 2 {
        a = 1
    } else {
        a = fibonacci(n - 2) + fibonacci(n - 1)
    }
    return a

}

func main() {
    time1 := time.Now()
    fmt.Println(fibonacci(40))
    time2 := time.Now()
    elapsed := float32(time2.Sub(time1)) / 1e6
    fmt.Printf("Elapsed time: %.4f milliseconds\n", elapsed)
}

Using weekly.2011-12-02 - https://groups.google.com/forum/#!topic/golang-nuts/gCzldiP_-2c