diff --git a/test/built-ins/Temporal/ZonedDateTime/prototype/since/argument-propertybag-timezone-getoffsetnanosecondsfor-non-integer.js b/test/built-ins/Temporal/ZonedDateTime/prototype/since/argument-propertybag-timezone-getoffsetnanosecondsfor-non-integer.js
new file mode 100644
index 0000000000..2f5d14bc1c
--- /dev/null
+++ b/test/built-ins/Temporal/ZonedDateTime/prototype/since/argument-propertybag-timezone-getoffsetnanosecondsfor-non-integer.js
@@ -0,0 +1,19 @@
+// Copyright (C) 2021 Igalia, S.L. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: sec-temporal.zoneddatetime.prototype.since
+description: RangeError thrown if time zone reports an offset that is not an integer number of nanoseconds
+features: [Temporal]
+includes: [temporalHelpers.js]
+---*/
+
+[3600_000_000_000.5, NaN, -Infinity, Infinity].forEach((wrongOffset) => {
+  const timeZone = TemporalHelpers.specificOffsetTimeZone(wrongOffset);
+  const datetime = new Temporal.ZonedDateTime(1_000_000_000_987_654_321n, "UTC");
+  const properties = { year: 2004, month: 11, day: 9, hour: 11, minute: 33, second: 20, timeZone };
+  timeZone.getPossibleInstantsFor = function () {
+    return [];
+  };
+  assert.throws(RangeError, () => datetime.since(properties, { largestUnit: "days" }));
+});
diff --git a/test/built-ins/Temporal/ZonedDateTime/prototype/since/argument-propertybag-timezone-getoffsetnanosecondsfor-out-of-range.js b/test/built-ins/Temporal/ZonedDateTime/prototype/since/argument-propertybag-timezone-getoffsetnanosecondsfor-out-of-range.js
new file mode 100644
index 0000000000..de38f16348
--- /dev/null
+++ b/test/built-ins/Temporal/ZonedDateTime/prototype/since/argument-propertybag-timezone-getoffsetnanosecondsfor-out-of-range.js
@@ -0,0 +1,19 @@
+// Copyright (C) 2021 Igalia, S.L. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: sec-temporal.zoneddatetime.prototype.since
+description: RangeError thrown if time zone reports an offset that is out of range
+features: [Temporal]
+includes: [temporalHelpers.js]
+---*/
+
+[-86400_000_000_001, 86400_000_000_001].forEach((wrongOffset) => {
+  const timeZone = TemporalHelpers.specificOffsetTimeZone(wrongOffset);
+  const datetime = new Temporal.ZonedDateTime(1_000_000_000_987_654_321n, "UTC");
+  const properties = { year: 2004, month: 11, day: 9, hour: 11, minute: 33, second: 20, timeZone };
+  timeZone.getPossibleInstantsFor = function () {
+    return [];
+  };
+  assert.throws(RangeError, () => datetime.since(properties, { largestUnit: "days" }));
+});
diff --git a/test/built-ins/Temporal/ZonedDateTime/prototype/since/argument-propertybag-timezone-getoffsetnanosecondsfor-wrong-type.js b/test/built-ins/Temporal/ZonedDateTime/prototype/since/argument-propertybag-timezone-getoffsetnanosecondsfor-wrong-type.js
new file mode 100644
index 0000000000..6420cbceef
--- /dev/null
+++ b/test/built-ins/Temporal/ZonedDateTime/prototype/since/argument-propertybag-timezone-getoffsetnanosecondsfor-wrong-type.js
@@ -0,0 +1,28 @@
+// Copyright (C) 2021 Igalia, S.L. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: sec-temporal.zoneddatetime.prototype.since
+description: TypeError thrown if time zone reports an offset that is not a Number
+features: [Temporal]
+includes: [temporalHelpers.js]
+---*/
+
+[
+  undefined,
+  null,
+  true,
+  "+01:00",
+  Symbol(),
+  3600_000_000_000n,
+  {},
+  { valueOf() { return 3600_000_000_000; } },
+].forEach((wrongOffset) => {
+  const timeZone = TemporalHelpers.specificOffsetTimeZone(wrongOffset);
+  const datetime = new Temporal.ZonedDateTime(1_000_000_000_987_654_321n, "UTC");
+  const properties = { year: 2004, month: 11, day: 9, hour: 11, minute: 33, second: 20, timeZone };
+  timeZone.getPossibleInstantsFor = function () {
+    return [];
+  };
+  assert.throws(TypeError, () => datetime.since(properties, { largestUnit: "days" }));
+});
diff --git a/test/built-ins/Temporal/ZonedDateTime/prototype/until/argument-propertybag-timezone-getoffsetnanosecondsfor-non-integer.js b/test/built-ins/Temporal/ZonedDateTime/prototype/until/argument-propertybag-timezone-getoffsetnanosecondsfor-non-integer.js
new file mode 100644
index 0000000000..2424fec49b
--- /dev/null
+++ b/test/built-ins/Temporal/ZonedDateTime/prototype/until/argument-propertybag-timezone-getoffsetnanosecondsfor-non-integer.js
@@ -0,0 +1,19 @@
+// Copyright (C) 2021 Igalia, S.L. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: sec-temporal.zoneddatetime.prototype.until
+description: RangeError thrown if time zone reports an offset that is not an integer number of nanoseconds
+features: [Temporal]
+includes: [temporalHelpers.js]
+---*/
+
+[3600_000_000_000.5, NaN, -Infinity, Infinity].forEach((wrongOffset) => {
+  const timeZone = TemporalHelpers.specificOffsetTimeZone(wrongOffset);
+  const datetime = new Temporal.ZonedDateTime(1_000_000_000_987_654_321n, "UTC");
+  const properties = { year: 2004, month: 11, day: 9, hour: 11, minute: 33, second: 20, timeZone };
+  timeZone.getPossibleInstantsFor = function () {
+    return [];
+  };
+  assert.throws(RangeError, () => datetime.until(properties, { largestUnit: "days" }));
+});
diff --git a/test/built-ins/Temporal/ZonedDateTime/prototype/until/argument-propertybag-timezone-getoffsetnanosecondsfor-out-of-range.js b/test/built-ins/Temporal/ZonedDateTime/prototype/until/argument-propertybag-timezone-getoffsetnanosecondsfor-out-of-range.js
new file mode 100644
index 0000000000..1475962fd8
--- /dev/null
+++ b/test/built-ins/Temporal/ZonedDateTime/prototype/until/argument-propertybag-timezone-getoffsetnanosecondsfor-out-of-range.js
@@ -0,0 +1,19 @@
+// Copyright (C) 2021 Igalia, S.L. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: sec-temporal.zoneddatetime.prototype.until
+description: RangeError thrown if time zone reports an offset that is out of range
+features: [Temporal]
+includes: [temporalHelpers.js]
+---*/
+
+[-86400_000_000_001, 86400_000_000_001].forEach((wrongOffset) => {
+  const timeZone = TemporalHelpers.specificOffsetTimeZone(wrongOffset);
+  const datetime = new Temporal.ZonedDateTime(1_000_000_000_987_654_321n, "UTC");
+  const properties = { year: 2004, month: 11, day: 9, hour: 11, minute: 33, second: 20, timeZone };
+  timeZone.getPossibleInstantsFor = function () {
+    return [];
+  };
+  assert.throws(RangeError, () => datetime.until(properties, { largestUnit: "days" }));
+});
diff --git a/test/built-ins/Temporal/ZonedDateTime/prototype/until/argument-propertybag-timezone-getoffsetnanosecondsfor-wrong-type.js b/test/built-ins/Temporal/ZonedDateTime/prototype/until/argument-propertybag-timezone-getoffsetnanosecondsfor-wrong-type.js
new file mode 100644
index 0000000000..fcb3495f75
--- /dev/null
+++ b/test/built-ins/Temporal/ZonedDateTime/prototype/until/argument-propertybag-timezone-getoffsetnanosecondsfor-wrong-type.js
@@ -0,0 +1,28 @@
+// Copyright (C) 2021 Igalia, S.L. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: sec-temporal.zoneddatetime.prototype.until
+description: TypeError thrown if time zone reports an offset that is not a Number
+features: [Temporal]
+includes: [temporalHelpers.js]
+---*/
+
+[
+  undefined,
+  null,
+  true,
+  "+01:00",
+  Symbol(),
+  3600_000_000_000n,
+  {},
+  { valueOf() { return 3600_000_000_000; } },
+].forEach((wrongOffset) => {
+  const timeZone = TemporalHelpers.specificOffsetTimeZone(wrongOffset);
+  const datetime = new Temporal.ZonedDateTime(1_000_000_000_987_654_321n, "UTC");
+  const properties = { year: 2004, month: 11, day: 9, hour: 11, minute: 33, second: 20, timeZone };
+  timeZone.getPossibleInstantsFor = function () {
+    return [];
+  };
+  assert.throws(TypeError, () => datetime.until(properties, { largestUnit: "days" }));
+});
diff --git a/test/intl402/Temporal/Calendar/prototype/era/argument-zoneddatetime-timezone-getoffsetnanosecondsfor-non-integer.js b/test/intl402/Temporal/Calendar/prototype/era/argument-zoneddatetime-timezone-getoffsetnanosecondsfor-non-integer.js
new file mode 100644
index 0000000000..b703f7f849
--- /dev/null
+++ b/test/intl402/Temporal/Calendar/prototype/era/argument-zoneddatetime-timezone-getoffsetnanosecondsfor-non-integer.js
@@ -0,0 +1,16 @@
+// Copyright (C) 2021 Igalia, S.L. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: sec-temporal.calendar.prototype.era
+description: RangeError thrown if time zone reports an offset that is not an integer number of nanoseconds
+features: [Temporal]
+includes: [temporalHelpers.js]
+---*/
+
+[3600_000_000_000.5, NaN, -Infinity, Infinity].forEach((wrongOffset) => {
+  const timeZone = TemporalHelpers.specificOffsetTimeZone(wrongOffset);
+  const calendar = new Temporal.Calendar("iso8601");
+  const datetime = new Temporal.ZonedDateTime(1_000_000_000_987_654_321n, timeZone);
+  assert.throws(RangeError, () => calendar.era(datetime));
+});
diff --git a/test/intl402/Temporal/Calendar/prototype/era/argument-zoneddatetime-timezone-getoffsetnanosecondsfor-out-of-range.js b/test/intl402/Temporal/Calendar/prototype/era/argument-zoneddatetime-timezone-getoffsetnanosecondsfor-out-of-range.js
new file mode 100644
index 0000000000..a04d8ed374
--- /dev/null
+++ b/test/intl402/Temporal/Calendar/prototype/era/argument-zoneddatetime-timezone-getoffsetnanosecondsfor-out-of-range.js
@@ -0,0 +1,16 @@
+// Copyright (C) 2021 Igalia, S.L. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: sec-temporal.calendar.prototype.era
+description: RangeError thrown if time zone reports an offset that is out of range
+features: [Temporal]
+includes: [temporalHelpers.js]
+---*/
+
+[-86400_000_000_001, 86400_000_000_001].forEach((wrongOffset) => {
+  const timeZone = TemporalHelpers.specificOffsetTimeZone(wrongOffset);
+  const calendar = new Temporal.Calendar("iso8601");
+  const datetime = new Temporal.ZonedDateTime(1_000_000_000_987_654_321n, timeZone);
+  assert.throws(RangeError, () => calendar.era(datetime));
+});
diff --git a/test/intl402/Temporal/Calendar/prototype/era/argument-zoneddatetime-timezone-getoffsetnanosecondsfor-wrong-type.js b/test/intl402/Temporal/Calendar/prototype/era/argument-zoneddatetime-timezone-getoffsetnanosecondsfor-wrong-type.js
new file mode 100644
index 0000000000..6e8179b6d7
--- /dev/null
+++ b/test/intl402/Temporal/Calendar/prototype/era/argument-zoneddatetime-timezone-getoffsetnanosecondsfor-wrong-type.js
@@ -0,0 +1,25 @@
+// Copyright (C) 2021 Igalia, S.L. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: sec-temporal.calendar.prototype.era
+description: TypeError thrown if time zone reports an offset that is not a Number
+features: [Temporal]
+includes: [temporalHelpers.js]
+---*/
+
+[
+  undefined,
+  null,
+  true,
+  "+01:00",
+  Symbol(),
+  3600_000_000_000n,
+  {},
+  { valueOf() { return 3600_000_000_000; } },
+].forEach((wrongOffset) => {
+  const timeZone = TemporalHelpers.specificOffsetTimeZone(wrongOffset);
+  const calendar = new Temporal.Calendar("iso8601");
+  const datetime = new Temporal.ZonedDateTime(1_000_000_000_987_654_321n, timeZone);
+  assert.throws(TypeError, () => calendar.era(datetime));
+});
diff --git a/test/intl402/Temporal/Calendar/prototype/eraYear/argument-zoneddatetime-timezone-getoffsetnanosecondsfor-non-integer.js b/test/intl402/Temporal/Calendar/prototype/eraYear/argument-zoneddatetime-timezone-getoffsetnanosecondsfor-non-integer.js
new file mode 100644
index 0000000000..c2bdc64b61
--- /dev/null
+++ b/test/intl402/Temporal/Calendar/prototype/eraYear/argument-zoneddatetime-timezone-getoffsetnanosecondsfor-non-integer.js
@@ -0,0 +1,16 @@
+// Copyright (C) 2021 Igalia, S.L. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: sec-temporal.calendar.prototype.erayear
+description: RangeError thrown if time zone reports an offset that is not an integer number of nanoseconds
+features: [Temporal]
+includes: [temporalHelpers.js]
+---*/
+
+[3600_000_000_000.5, NaN, -Infinity, Infinity].forEach((wrongOffset) => {
+  const timeZone = TemporalHelpers.specificOffsetTimeZone(wrongOffset);
+  const calendar = new Temporal.Calendar("iso8601");
+  const datetime = new Temporal.ZonedDateTime(1_000_000_000_987_654_321n, timeZone);
+  assert.throws(RangeError, () => calendar.eraYear(datetime));
+});
diff --git a/test/intl402/Temporal/Calendar/prototype/eraYear/argument-zoneddatetime-timezone-getoffsetnanosecondsfor-out-of-range.js b/test/intl402/Temporal/Calendar/prototype/eraYear/argument-zoneddatetime-timezone-getoffsetnanosecondsfor-out-of-range.js
new file mode 100644
index 0000000000..d6491789ef
--- /dev/null
+++ b/test/intl402/Temporal/Calendar/prototype/eraYear/argument-zoneddatetime-timezone-getoffsetnanosecondsfor-out-of-range.js
@@ -0,0 +1,16 @@
+// Copyright (C) 2021 Igalia, S.L. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: sec-temporal.calendar.prototype.erayear
+description: RangeError thrown if time zone reports an offset that is out of range
+features: [Temporal]
+includes: [temporalHelpers.js]
+---*/
+
+[-86400_000_000_001, 86400_000_000_001].forEach((wrongOffset) => {
+  const timeZone = TemporalHelpers.specificOffsetTimeZone(wrongOffset);
+  const calendar = new Temporal.Calendar("iso8601");
+  const datetime = new Temporal.ZonedDateTime(1_000_000_000_987_654_321n, timeZone);
+  assert.throws(RangeError, () => calendar.eraYear(datetime));
+});
diff --git a/test/intl402/Temporal/Calendar/prototype/eraYear/argument-zoneddatetime-timezone-getoffsetnanosecondsfor-wrong-type.js b/test/intl402/Temporal/Calendar/prototype/eraYear/argument-zoneddatetime-timezone-getoffsetnanosecondsfor-wrong-type.js
new file mode 100644
index 0000000000..f741a91206
--- /dev/null
+++ b/test/intl402/Temporal/Calendar/prototype/eraYear/argument-zoneddatetime-timezone-getoffsetnanosecondsfor-wrong-type.js
@@ -0,0 +1,25 @@
+// Copyright (C) 2021 Igalia, S.L. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: sec-temporal.calendar.prototype.erayear
+description: TypeError thrown if time zone reports an offset that is not a Number
+features: [Temporal]
+includes: [temporalHelpers.js]
+---*/
+
+[
+  undefined,
+  null,
+  true,
+  "+01:00",
+  Symbol(),
+  3600_000_000_000n,
+  {},
+  { valueOf() { return 3600_000_000_000; } },
+].forEach((wrongOffset) => {
+  const timeZone = TemporalHelpers.specificOffsetTimeZone(wrongOffset);
+  const calendar = new Temporal.Calendar("iso8601");
+  const datetime = new Temporal.ZonedDateTime(1_000_000_000_987_654_321n, timeZone);
+  assert.throws(TypeError, () => calendar.eraYear(datetime));
+});