paxHdrs[paxKey] = v
		}
	}
	verifyTime := func(ts time.Time, size int, name, paxKey string) {
		if ts.IsZero() {
			return // Always okay
		}
		if !fitsInBase256(size, ts.Unix()) {
			whyNoGNU = fmt.Sprintf("GNU cannot encode %s=%v", name, ts)
			format.mustNotBe(FormatGNU)
		}
		isMtime := paxKey == paxMtime
		fitsOctal := fitsInOctal(size, ts.Unix())
		if (isMtime && !fitsOctal) || !isMtime {