// A common requirement in programs is getting the number // of seconds, milliseconds, or nanoseconds since the // [Unix epoch](https://en.wikipedia.org/wiki/Unix_time). // Here's how to do it in Go. package main import ( "fmt" "time" ) func main() { // Use `time.Now` with `Unix`, `UnixMilli` or `UnixNano` // to get elapsed time since the Unix epoch in seconds, // milliseconds or nanoseconds, respectively. now := time.Now() fmt.Println(now) fmt.Println(now.Unix()) fmt.Println(now.UnixMilli()) fmt.Println(now.UnixNano()) // You can also convert integer seconds or nanoseconds // since the epoch into the corresponding `time`. fmt.Println(time.Unix(now.Unix(), 0)) fmt.Println(time.Unix(0, now.UnixNano())) }