package main
import (
"fmt"
"time"
)
func main() {
now := time.Now()
fmt.Println(now)
// AddDate(y, m, d)
dt := now.AddDate(0, -1, 0)
fmt.Println(dt)
}
/*
run:
2020-08-13 13:36:23.985189697 +0000 UTC m=+0.000075075
2020-07-13 13:36:23.985189697 +0000 UTC
*/