golang return time in RFC3339 code example

Example: golang time format with milliseconds

//Golang format datetime to string with miliseconds
package main

import (
	"fmt"
	"time"
)

func main() {
	timeFormatMilisecondsWithTrailingZero()
	timeFormatMilisecondsWithoutTrailingZero()
}

func timeFormatMilisecondsWithTrailingZero() {
	//2020-10-22 14:30:29.250
	fmt.Println(time.Now().Format("2006-01-02 15:04:05.000"))

}
func timeFormatMilisecondsWithoutTrailingZero() {
	//2020-10-22 14:30:29.25
	fmt.Println(time.Now().Format("2006-01-02 15:04:05.999"))
}