sleepy times for Go

main.go

package main

import (
	"fmt"
	"time"
)

func main() {
	tm := time.Now()
	tmu := time.Now().UTC()

	fmt.Println("Current time:", tm)
	fmt.Println("Current time UTC:", tmu)
	fmt.Println("")
	fmt.Println("Put your machine to sleep for 2 minutes now...")
	<-time.After(1 * time.Minute)

	now := time.Now()
	fmt.Println("")
	fmt.Println("The current time is: ", now)
	fmt.Println("The previous time was: ", tm)
	fmt.Println("The difference between these times is: ", now.Sub(tm))

	nowu := time.Now().UTC()
	fmt.Println("")
	fmt.Println("The current UTC time is: ", nowu)
	fmt.Println("The previous UTC time was: ", tmu)
	fmt.Println("The difference between these UTC times is: ", nowu.Sub(tmu))
}

output.txt

$ go run ./sleepy/main.go 
Current time: 2018-02-07 18:40:47.221076456 -0800 PST m=+0.000345520
Current time UTC: 2018-02-08 02:40:47.221076519 +0000 UTC

Put your machine to sleep for 2 minutes now...

The current time is:  2018-02-07 18:42:44.393655472 -0800 PST m=+60.001694536
The previous time was:  2018-02-07 18:40:47.221076456 -0800 PST m=+0.000345520
The difference between these times is:  1m0.001349016s

The current UTC time is:  2018-02-08 02:42:44.393791308 +0000 UTC
The previous UTC time was:  2018-02-08 02:40:47.221076519 +0000 UTC
The difference between these UTC times is:  1m57.172714789s