Timers

Context

A time.Timer represents a single event in the future. You can wait for it on its channel (<-timer.C) or stop it before it fires.

Example

Create a timer that fires after 2 seconds.

Code example

package main

import (
    "fmt"
    "time"
)

func main() {
    timer := time.NewTimer(2 * time.Second)
    fmt.Println("Waiting...")
    <-timer.C
    fmt.Println("Timer fired")

    // Stopping a timer
    timer2 := time.NewTimer(1 * time.Second)
    stop := timer2.Stop()
    if stop {
        fmt.Println("Timer2 stopped before firing")
    }
}

Output

Waiting...
Timer fired
Timer2 stopped before firing

Useful links

• time.Timer documentation
• Go by Example: Timers