package main

import (
    "fmt"
    "time"
)

func main() {
    timeLayout := "2006-01-02 15:04:05"
    timeStamp, _ := time.ParseInLocation(timeLayout, "2021-11-20 23:34:10", time.Local)
    fmt.Println(timeStamp)
}
package main

import (
    "fmt"
    "time"
)

func main() {
    timeLayout := "2006-01-02 15:04:05"
    timeStr := time.Unix(1637420154, 0).Format(timeLayout)
    fmt.Println(timeStr)
}