public void now_Clock_offsets() {

    Instant base = LocalDateTime.of(1970, 1, 1, 12, 0).toInstant(ZoneOffset.UTC);
    for (int i = -9; i < 15; i++) {
      ZoneOffset offset = ZoneOffset.ofHours(i);
      Clock clock = Clock.fixed(base, offset);
      OffsetDate test = OffsetDate.now(clock);
      check(test, 1970, 1, (i >= 12 ? 2 : 1), offset);
    }
  }

  @Test(expectedExceptions = NullPointerException.class, groups = { "tck" }