11   assertEquals('Europe/Isle_of_Man', df.resolvedOptions().timeZone);
14   assertEquals('Africa/Dar_es_Salaam', df.resolvedOptions().timeZone);
17   assertEquals('America/Port_of_Spain', df.resolvedOptions().timeZone);
21   assertEquals('America/North_Dakota/New_Salem', df.resolvedOptions().timeZone);
27   assertEquals(df1.resolvedOptions().timeZone, df2.resolvedOptions().timeZone);
30   assertEquals(df1.resolvedOptions().timeZone, df2.resolvedOptions().timeZone);
34   assertEquals(df1.resolvedOptions().timeZone, df2.resolvedOptions().timeZone);
43   assertEquals('America/Port-au-Prince', df.resolvedOptions().timeZone);
48   assertEquals(df1.resolvedOptions().timeZone, df2.resolvedOptions().timeZone);
51   assertThrows(() => Intl.DateTimeFormat(undefined, {timeZone: 'Europe/_Paris'}));  property
52   assertThrows(() => Intl.DateTimeFormat(undefined, {timeZone: 'America/New__York'}));  property
53   assertThrows(() => Intl.DateTimeFormat(undefined, {timeZone: 'America//New_York'}));  property
54   assertThrows(() => Intl.DateTimeFormat(undefined, {timeZone: 'America/New_York_'}));  property
55   assertThrows(() => Intl.DateTimeFormat(undefined, {timeZone: 'America/New_Y0rk'}));  property