print a basic text version of a year's month

gistfile1.txt

package main

import (
	"fmt"
	"time"
)

func main() {
	year, m := 2018, time.Month(1)
	tfirst := time.Date(year, m, 1, 0, 0, 0, 0, time.UTC)
	da, wa := tfirst.Day(), tfirst.Weekday()
	tlast := time.Date(year, m+1, 0, 0, 0, 0, 0, time.UTC)
	dz, wz := tlast.Day(), tlast.Weekday()
	x := 0
	for ; x < int(wa); x++ {
		fmt.Print(" ")
	}
	d := 1
	for ; d <= dz; d++ {
		if (d+int(wa)-1)%7 == 0 {
			fmt.Println(d, " ")
		} else {
			fmt.Print(d, " ")
		}
	}
	fmt.Println("\n", da, wa, int(wa), dz, wz, int(wz))
}