offset += int(buf[2])
	}

	*t = Time{}
	t.wall = uint64(nsec)
	t.ext = sec

	if offset == -1*60 {
		t.setLoc(&utcLoc)
	} else if _, localoff, _, _, _ := Local.lookup(t.unixSec()); offset == localoff {
		t.setLoc(Local)
	} else {
		t.setLoc(FixedZone("", offset))
	}

	return nil
}

// TODO(rsc): Remove GobEncoder, GobDecoder, MarshalJSON, UnmarshalJSON in Go 2.

		name, offset, _, _, _ := local.lookup(t.unixSec())
		if offset == zoneOffset && (zoneName == "" || name == zoneName) {
			t.setLoc(local)
			return t, nil
		}

		// Otherwise create fake zone to record offset.
		zoneNameCopy := stringslite.Clone(zoneName) // avoid leaking the input value
		t.setLoc(FixedZone(zoneNameCopy, zoneOffset))
		return t, nil
	}

	if zoneName != "" {

	F_SETFD                       = 0x2
	F_SETFL                       = 0x4
	F_SETLK                       = 0x6
	F_SETLK64                     = 0x6
	F_SETLK64_NBMAND              = 0x2a
	F_SETLKW                      = 0x7
	F_SETLKW64                    = 0x7
	F_SETLK_NBMAND                = 0x2a
	F_SETOWN                      = 0x18
	F_SHARE                       = 0x28
	F_SHARE_NBMAND                = 0x2b

		{name: "STLR", argLength: 3, reg: gpstore, asm: "STLR", faultOnNilArg0: true, hasSideEffects: true},
		{name: "STLRW", argLength: 3, reg: gpstore, asm: "STLRW", faultOnNilArg0: true, hasSideEffects: true},

		// atomic exchange.
		// store arg1 to arg0. arg2=mem. returns <old content of *arg0, memory>. auxint must be zero.
		// LDAXR	(Rarg0), Rout