PHP等效于GO中的strtotime（）

I am trying to convert date/time string to unix timestamp string:

<?php
    echo strtotime("20140921040000");
?>
Output: 1411286400   //timestamp

Doing same in GO lang, but not getting desired result. Go code is below:

package main

import (
    "fmt"
    "time"
)

func main() {
    tm := time.Unix(1411286400, 0)
    fmt.Println(tm) //output: 2014-09-21 08:00:00 +0000 UTC

    //================
    layout := "20060102150405"
    str := "20140921040000"
    t, err := time.Parse(layout, str)
    if err != nil {
        fmt.Println(err)
    }
    fmt.Println(t) // output: 2014-09-21 04:00:00 +0000 UTC
}

In your last line do:

fmt.Println(t.Unix())

You can compare it with this PHP code: http://sandbox.onlinephpfunctions.com/code/b520953ea26e2d84ed85db6f5657ceeccade08d4