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// Copyright 2011 The Go Authors.  All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

package time_test

import (
	"fmt"
	"time"
)

func expensiveCall() {}

func ExampleDuration() {
	t0 := time.Now()
	expensiveCall()
	t1 := time.Now()
	fmt.Printf("The call took %v to run.\n", t1.Sub(t0))
}

var c chan int

func handle(int) {}

func ExampleAfter() {
	select {
	case m := <-c:
		handle(m)
	case <-time.After(5 * time.Minute):
		fmt.Println("timed out")
	}
}

func ExampleSleep() {
	time.Sleep(100 * time.Millisecond)
}

func statusUpdate() string { return "" }

func ExampleTick() {
	c := time.Tick(1 * time.Minute)
	for now := range c {
		fmt.Printf("%v %s\n", now, statusUpdate())
	}
}

func ExampleMonth() {
	_, month, day := time.Now().Date()
	if month == time.November && day == 10 {
		fmt.Println("Happy Go day!")
	}
}

// Go launched at 2009-11-10 15:00:00 -0800 PST
func ExampleDate() {
	t := time.Date(2009, time.November, 10, 23, 0, 0, 0, time.UTC)
	fmt.Printf("Go launched at %s\n", t.Local())
}