support bc time ?

[Travel.Liu]

		t1 := time.Date(-410,1,1,0,0,0,0,time.Local)
		fmt.Println(t1.String())
		a := "-0410-01-01 00:00:00 +0805"
		ti, err := dateparse.ParseAny(a)
		if err != nil {
			fmt.Println(err)
			return
		}
		fmt.Println(ti.String())