add minutes

package main

import (
    "fmt"
    "time"
)

func main() {
    t := time.Now()

	layout := "2006-01-02 15:04:05"
    newT := t.Add(time.Minute * 30)
	datetime := newT.Format(layout)
	datetimeNow := t.Format(layout)
    fmt.Println("Now :", datetimeNow)
    fmt.Println("Notif :", datetime)
    
    
}

Go

INFO