Temporal: Add more coverage for various forms of UTC offset

ptomato · ptomato · commit 988082031b0f · 2026-02-26T19:10:57.000-08:00
With and without colon separators, and with period and comma decimal
separators.
diff --git a/test/built-ins/Temporal/Instant/compare/argument-string-date-with-utc-offset.js b/test/built-ins/Temporal/Instant/compare/argument-string-date-with-utc-offset.js
@@ -13,6 +13,11 @@ const validStrings = [
   "1970-01-01T00Z[!UTC]",
   "1970-01-01T00Z[Europe/Vienna]",
   "1970-01-01T00+00:00",
+  "1970-01-01T00+00:00:00,0",
+  "1970-01-01T00+00:00:00.000000000",
+  "1970-01-01T00+0000",
+  "1970-01-01T00+000000,0",
+  "1970-01-01T00+000000.000000000",
   "1970-01-01T00+00:00[UTC]",
   "1970-01-01T00+00:00[!UTC]",
   "1969-12-31T16-08:00[America/Vancouver]",
diff --git a/test/built-ins/Temporal/Instant/from/argument-string-date-with-utc-offset.js b/test/built-ins/Temporal/Instant/from/argument-string-date-with-utc-offset.js
@@ -13,6 +13,11 @@ const validStrings = [
   "1970-01-01T00Z[!UTC]",
   "1970-01-01T00Z[Europe/Vienna]",
   "1970-01-01T00+00:00",
+  "1970-01-01T00+00:00:00,0",
+  "1970-01-01T00+00:00:00.000000000",
+  "1970-01-01T00+0000",
+  "1970-01-01T00+000000,0",
+  "1970-01-01T00+000000.000000000",
   "1970-01-01T00+00:00[UTC]",
   "1970-01-01T00+00:00[!UTC]",
   "1969-12-31T16-08:00[America/Vancouver]",
diff --git a/test/built-ins/Temporal/Instant/prototype/equals/argument-string-date-with-utc-offset.js b/test/built-ins/Temporal/Instant/prototype/equals/argument-string-date-with-utc-offset.js
@@ -15,6 +15,11 @@ const validStrings = [
   "1970-01-01T00Z[!UTC]",
   "1970-01-01T00Z[Europe/Vienna]",
   "1970-01-01T00+00:00",
+  "1970-01-01T00+00:00:00,0",
+  "1970-01-01T00+00:00:00.000000000",
+  "1970-01-01T00+0000",
+  "1970-01-01T00+000000,0",
+  "1970-01-01T00+000000.000000000",
   "1970-01-01T00+00:00[UTC]",
   "1970-01-01T00+00:00[!UTC]",
   "1969-12-31T16-08:00[America/Vancouver]",
diff --git a/test/built-ins/Temporal/Instant/prototype/since/argument-string-date-with-utc-offset.js b/test/built-ins/Temporal/Instant/prototype/since/argument-string-date-with-utc-offset.js
@@ -16,6 +16,11 @@ const validStrings = [
   "1970-01-01T00Z[!UTC]",
   "1970-01-01T00Z[Europe/Vienna]",
   "1970-01-01T00+00:00",
+  "1970-01-01T00+00:00:00,0",
+  "1970-01-01T00+00:00:00.000000000",
+  "1970-01-01T00+0000",
+  "1970-01-01T00+000000,0",
+  "1970-01-01T00+000000.000000000",
   "1970-01-01T00+00:00[UTC]",
   "1970-01-01T00+00:00[!UTC]",
   "1969-12-31T16-08:00[America/Vancouver]",
diff --git a/test/built-ins/Temporal/Instant/prototype/until/argument-string-date-with-utc-offset.js b/test/built-ins/Temporal/Instant/prototype/until/argument-string-date-with-utc-offset.js
@@ -16,6 +16,11 @@ const validStrings = [
   "1970-01-01T00Z[!UTC]",
   "1970-01-01T00Z[Europe/Vienna]",
   "1970-01-01T00+00:00",
+  "1970-01-01T00+00:00:00,0",
+  "1970-01-01T00+00:00:00.000000000",
+  "1970-01-01T00+0000",
+  "1970-01-01T00+000000,0",
+  "1970-01-01T00+000000.000000000",
   "1970-01-01T00+00:00[UTC]",
   "1970-01-01T00+00:00[!UTC]",
   "1969-12-31T16-08:00[America/Vancouver]",
diff --git a/test/built-ins/Temporal/PlainDate/compare/argument-string-date-with-utc-offset.js b/test/built-ins/Temporal/PlainDate/compare/argument-string-date-with-utc-offset.js
@@ -9,6 +9,11 @@ features: [Temporal]
 
 const validStrings = [
   "2000-05-02T00+00:00",
+  "2000-05-02T00+00:00:00,0",
+  "2000-05-02T00+00:00:00.000000000",
+  "2000-05-02T00+0000",
+  "2000-05-02T00+000000,0",
+  "2000-05-02T00+000000.000000000",
   "2000-05-02T00+00:00[UTC]",
   "2000-05-02T00+00:00[!UTC]",
   "2000-05-02T00-02:30[America/St_Johns]",
diff --git a/test/built-ins/Temporal/PlainDate/from/argument-string-date-with-utc-offset.js b/test/built-ins/Temporal/PlainDate/from/argument-string-date-with-utc-offset.js
@@ -10,6 +10,11 @@ includes: [temporalHelpers.js]
 
 const validStrings = [
   "2000-05-02T00+00:00",
+  "2000-05-02T00+00:00:00,0",
+  "2000-05-02T00+00:00:00.000000000",
+  "2000-05-02T00+0000",
+  "2000-05-02T00+000000,0",
+  "2000-05-02T00+000000.000000000",
   "2000-05-02T00+00:00[UTC]",
   "2000-05-02T00+00:00[!UTC]",
   "2000-05-02T00-02:30[America/St_Johns]",
diff --git a/test/built-ins/Temporal/PlainDate/prototype/equals/argument-string-date-with-utc-offset.js b/test/built-ins/Temporal/PlainDate/prototype/equals/argument-string-date-with-utc-offset.js
@@ -11,6 +11,11 @@ const instance = new Temporal.PlainDate(2000, 5, 2);
 
 const validStrings = [
   "2000-05-02T00+00:00",
+  "2000-05-02T00+00:00:00,0",
+  "2000-05-02T00+00:00:00.000000000",
+  "2000-05-02T00+0000",
+  "2000-05-02T00+000000,0",
+  "2000-05-02T00+000000.000000000",
   "2000-05-02T00+00:00[UTC]",
   "2000-05-02T00+00:00[!UTC]",
   "2000-05-02T00-02:30[America/St_Johns]",
diff --git a/test/built-ins/Temporal/PlainDate/prototype/since/argument-string-date-with-utc-offset.js b/test/built-ins/Temporal/PlainDate/prototype/since/argument-string-date-with-utc-offset.js
@@ -12,6 +12,11 @@ const instance = new Temporal.PlainDate(2000, 5, 2);
 
 const validStrings = [
   "2000-05-02T00+00:00",
+  "2000-05-02T00+00:00:00,0",
+  "2000-05-02T00+00:00:00.000000000",
+  "2000-05-02T00+0000",
+  "2000-05-02T00+000000,0",
+  "2000-05-02T00+000000.000000000",
   "2000-05-02T00+00:00[UTC]",
   "2000-05-02T00+00:00[!UTC]",
   "2000-05-02T00-02:30[America/St_Johns]",
diff --git a/test/built-ins/Temporal/PlainDate/prototype/toPlainDateTime/argument-string-date-with-utc-offset.js b/test/built-ins/Temporal/PlainDate/prototype/toPlainDateTime/argument-string-date-with-utc-offset.js
@@ -12,6 +12,11 @@ const instance = new Temporal.PlainDate(2000, 5, 2);
 
 const validStrings = [
   "12:34:56.987654321+00:00",
+  "12:34:56.987654321+00:00:00,0",
+  "12:34:56.987654321+00:00:00.000000000",
+  "12:34:56.987654321+0000",
+  "12:34:56.987654321+000000,0",
+  "12:34:56.987654321+000000.000000000",
   "12:34:56.987654321+00:00[UTC]",
   "12:34:56.987654321+00:00[!UTC]",
   "12:34:56.987654321-02:30[America/St_Johns]",
diff --git a/test/built-ins/Temporal/PlainDate/prototype/toZonedDateTime/argument-string-date-with-utc-offset.js b/test/built-ins/Temporal/PlainDate/prototype/toZonedDateTime/argument-string-date-with-utc-offset.js
@@ -11,6 +11,11 @@ const instance = new Temporal.PlainDate(2000, 5, 2);
 
 const validStrings = [
   "12:34:56.987654321+00:00",
+  "12:34:56.987654321+00:00:00,0",
+  "12:34:56.987654321+00:00:00.000000000",
+  "12:34:56.987654321+0000",
+  "12:34:56.987654321+000000,0",
+  "12:34:56.987654321+000000.000000000",
   "12:34:56.987654321+00:00[UTC]",
   "12:34:56.987654321+00:00[!UTC]",
   "12:34:56.987654321-02:30[America/St_Johns]",
diff --git a/test/built-ins/Temporal/PlainDate/prototype/until/argument-string-date-with-utc-offset.js b/test/built-ins/Temporal/PlainDate/prototype/until/argument-string-date-with-utc-offset.js
@@ -12,6 +12,11 @@ const instance = new Temporal.PlainDate(2000, 5, 2);
 
 const validStrings = [
   "2000-05-02T00+00:00",
+  "2000-05-02T00+00:00:00,0",
+  "2000-05-02T00+00:00:00.000000000",
+  "2000-05-02T00+0000",
+  "2000-05-02T00+000000,0",
+  "2000-05-02T00+000000.000000000",
   "2000-05-02T00+00:00[UTC]",
   "2000-05-02T00+00:00[!UTC]",
   "2000-05-02T00-02:30[America/St_Johns]",
diff --git a/test/built-ins/Temporal/PlainDateTime/compare/argument-string-date-with-utc-offset.js b/test/built-ins/Temporal/PlainDateTime/compare/argument-string-date-with-utc-offset.js
@@ -9,6 +9,11 @@ features: [Temporal]
 
 const validStrings = [
   "1976-11-18T15:23+00:00",
+  "1976-11-18T15:23+00:00:00,0",
+  "1976-11-18T15:23+00:00:00.000000000",
+  "1976-11-18T15:23+0000",
+  "1976-11-18T15:23+000000,0",
+  "1976-11-18T15:23+000000.000000000",
   "1976-11-18T15:23+00:00[UTC]",
   "1976-11-18T15:23+00:00[!UTC]",
   "1976-11-18T15:23-02:30[America/St_Johns]",
diff --git a/test/built-ins/Temporal/PlainDateTime/from/argument-string-date-with-utc-offset.js b/test/built-ins/Temporal/PlainDateTime/from/argument-string-date-with-utc-offset.js
@@ -10,6 +10,11 @@ includes: [temporalHelpers.js]
 
 const validStrings = [
   "1976-11-18T15:23+00:00",
+  "1976-11-18T15:23+00:00:00,0",
+  "1976-11-18T15:23+00:00:00.000000000",
+  "1976-11-18T15:23+0000",
+  "1976-11-18T15:23+000000,0",
+  "1976-11-18T15:23+000000.000000000",
   "1976-11-18T15:23+00:00[UTC]",
   "1976-11-18T15:23+00:00[!UTC]",
   "1976-11-18T15:23-02:30[America/St_Johns]",
diff --git a/test/built-ins/Temporal/PlainDateTime/prototype/equals/argument-string-date-with-utc-offset.js b/test/built-ins/Temporal/PlainDateTime/prototype/equals/argument-string-date-with-utc-offset.js
@@ -11,6 +11,11 @@ const instance = new Temporal.PlainDateTime(1976, 11, 18, 15, 23);
 
 const validStrings = [
   "1976-11-18T15:23+00:00",
+  "1976-11-18T15:23+00:00:00,0",
+  "1976-11-18T15:23+00:00:00.000000000",
+  "1976-11-18T15:23+0000",
+  "1976-11-18T15:23+000000,0",
+  "1976-11-18T15:23+000000.000000000",
   "1976-11-18T15:23+00:00[UTC]",
   "1976-11-18T15:23+00:00[!UTC]",
   "1976-11-18T15:23-02:30[America/St_Johns]",
diff --git a/test/built-ins/Temporal/PlainDateTime/prototype/since/argument-string-date-with-utc-offset.js b/test/built-ins/Temporal/PlainDateTime/prototype/since/argument-string-date-with-utc-offset.js
@@ -12,6 +12,11 @@ const instance = new Temporal.PlainDateTime(1976, 11, 18, 15, 23);
 
 const validStrings = [
   "1976-11-18T15:23+00:00",
+  "1976-11-18T15:23+00:00:00,0",
+  "1976-11-18T15:23+00:00:00.000000000",
+  "1976-11-18T15:23+0000",
+  "1976-11-18T15:23+000000,0",
+  "1976-11-18T15:23+000000.000000000",
   "1976-11-18T15:23+00:00[UTC]",
   "1976-11-18T15:23+00:00[!UTC]",
   "1976-11-18T15:23-02:30[America/St_Johns]",
diff --git a/test/built-ins/Temporal/PlainDateTime/prototype/until/argument-string-date-with-utc-offset.js b/test/built-ins/Temporal/PlainDateTime/prototype/until/argument-string-date-with-utc-offset.js
@@ -12,6 +12,11 @@ const instance = new Temporal.PlainDateTime(1976, 11, 18, 15, 23);
 
 const validStrings = [
   "1976-11-18T15:23+00:00",
+  "1976-11-18T15:23+00:00:00,0",
+  "1976-11-18T15:23+00:00:00.000000000",
+  "1976-11-18T15:23+0000",
+  "1976-11-18T15:23+000000,0",
+  "1976-11-18T15:23+000000.000000000",
   "1976-11-18T15:23+00:00[UTC]",
   "1976-11-18T15:23+00:00[!UTC]",
   "1976-11-18T15:23-02:30[America/St_Johns]",
diff --git a/test/built-ins/Temporal/PlainDateTime/prototype/withPlainTime/argument-string-date-with-utc-offset.js b/test/built-ins/Temporal/PlainDateTime/prototype/withPlainTime/argument-string-date-with-utc-offset.js
@@ -12,6 +12,11 @@ const instance = new Temporal.PlainDateTime(1976, 11, 18, 15, 23);
 
 const validStrings = [
   "12:34:56.987654321+00:00",
+  "12:34:56.987654321+00:00:00,0",
+  "12:34:56.987654321+00:00:00.000000000",
+  "12:34:56.987654321+0000",
+  "12:34:56.987654321+000000,0",
+  "12:34:56.987654321+000000.000000000",
   "12:34:56.987654321+00:00[UTC]",
   "12:34:56.987654321+00:00[!UTC]",
   "12:34:56.987654321-02:30[America/St_Johns]",
diff --git a/test/built-ins/Temporal/PlainMonthDay/from/argument-string-date-with-utc-offset.js b/test/built-ins/Temporal/PlainMonthDay/from/argument-string-date-with-utc-offset.js
@@ -18,6 +18,11 @@ const validStrings = [
   "--05-02[u-ca=iso8601]",
   "--05-02[Asia/Tokyo][u-ca=iso8601]",
   "2000-05-02T00+00:00",
+  "2000-05-02T00+00:00:00,0",
+  "2000-05-02T00+00:00:00.000000000",
+  "2000-05-02T00+0000",
+  "2000-05-02T00+000000,0",
+  "2000-05-02T00+000000.000000000",
   "2000-05-02T00+00:00[UTC]",
   "2000-05-02T00-02:30[America/St_Johns]",
 ];
diff --git a/test/built-ins/Temporal/PlainMonthDay/prototype/equals/argument-string-date-with-utc-offset.js b/test/built-ins/Temporal/PlainMonthDay/prototype/equals/argument-string-date-with-utc-offset.js
@@ -19,6 +19,11 @@ const validStrings = [
   "--05-02[u-ca=iso8601]",
   "--05-02[Asia/Tokyo][u-ca=iso8601]",
   "2000-05-02T00+00:00",
+  "2000-05-02T00+00:00:00,0",
+  "2000-05-02T00+00:00:00.000000000",
+  "2000-05-02T00+0000",
+  "2000-05-02T00+000000,0",
+  "2000-05-02T00+000000.000000000",
   "2000-05-02T00+00:00[UTC]",
   "2000-05-02T00-02:30[America/St_Johns]",
 ];
diff --git a/test/built-ins/Temporal/PlainTime/compare/argument-string-date-with-utc-offset.js b/test/built-ins/Temporal/PlainTime/compare/argument-string-date-with-utc-offset.js
@@ -9,6 +9,11 @@ features: [Temporal]
 
 const validStrings = [
   "12:34:56.987654321+00:00",
+  "12:34:56.987654321+00:00:00,0",
+  "12:34:56.987654321+00:00:00.000000000",
+  "12:34:56.987654321+0000",
+  "12:34:56.987654321+000000,0",
+  "12:34:56.987654321+000000.000000000",
   "12:34:56.987654321+00:00[UTC]",
   "12:34:56.987654321+00:00[!UTC]",
   "12:34:56.987654321-02:30[America/St_Johns]",
diff --git a/test/built-ins/Temporal/PlainTime/from/argument-string-date-with-utc-offset.js b/test/built-ins/Temporal/PlainTime/from/argument-string-date-with-utc-offset.js
@@ -10,6 +10,11 @@ includes: [temporalHelpers.js]
 
 const validStrings = [
   "12:34:56.987654321+00:00",
+  "12:34:56.987654321+00:00:00,0",
+  "12:34:56.987654321+00:00:00.000000000",
+  "12:34:56.987654321+0000",
+  "12:34:56.987654321+000000,0",
+  "12:34:56.987654321+000000.000000000",
   "12:34:56.987654321+00:00[UTC]",
   "12:34:56.987654321+00:00[!UTC]",
   "12:34:56.987654321-02:30[America/St_Johns]",
diff --git a/test/built-ins/Temporal/PlainTime/prototype/equals/argument-string-date-with-utc-offset.js b/test/built-ins/Temporal/PlainTime/prototype/equals/argument-string-date-with-utc-offset.js
@@ -11,6 +11,11 @@ const instance = new Temporal.PlainTime(12, 34, 56, 987, 654, 321);
 
 const validStrings = [
   "12:34:56.987654321+00:00",
+  "12:34:56.987654321+00:00:00,0",
+  "12:34:56.987654321+00:00:00.000000000",
+  "12:34:56.987654321+0000",
+  "12:34:56.987654321+000000,0",
+  "12:34:56.987654321+000000.000000000",
   "12:34:56.987654321+00:00[UTC]",
   "12:34:56.987654321+00:00[!UTC]",
   "12:34:56.987654321-02:30[America/St_Johns]",
diff --git a/test/built-ins/Temporal/PlainTime/prototype/since/argument-string-date-with-utc-offset.js b/test/built-ins/Temporal/PlainTime/prototype/since/argument-string-date-with-utc-offset.js
@@ -12,6 +12,11 @@ const instance = new Temporal.PlainTime(12, 34, 56, 987, 654, 321);
 
 const validStrings = [
   "12:34:56.987654321+00:00",
+  "12:34:56.987654321+00:00:00,0",
+  "12:34:56.987654321+00:00:00.000000000",
+  "12:34:56.987654321+0000",
+  "12:34:56.987654321+000000,0",
+  "12:34:56.987654321+000000.000000000",
   "12:34:56.987654321+00:00[UTC]",
   "12:34:56.987654321+00:00[!UTC]",
   "12:34:56.987654321-02:30[America/St_Johns]",
diff --git a/test/built-ins/Temporal/PlainTime/prototype/until/argument-string-date-with-utc-offset.js b/test/built-ins/Temporal/PlainTime/prototype/until/argument-string-date-with-utc-offset.js
@@ -12,6 +12,11 @@ const instance = new Temporal.PlainTime(12, 34, 56, 987, 654, 321);
 
 const validStrings = [
   "12:34:56.987654321+00:00",
+  "12:34:56.987654321+00:00:00,0",
+  "12:34:56.987654321+00:00:00.000000000",
+  "12:34:56.987654321+0000",
+  "12:34:56.987654321+000000,0",
+  "12:34:56.987654321+000000.000000000",
   "12:34:56.987654321+00:00[UTC]",
   "12:34:56.987654321+00:00[!UTC]",
   "12:34:56.987654321-02:30[America/St_Johns]",
diff --git a/test/built-ins/Temporal/PlainYearMonth/compare/argument-string-date-with-utc-offset.js b/test/built-ins/Temporal/PlainYearMonth/compare/argument-string-date-with-utc-offset.js
@@ -13,6 +13,11 @@ const validStrings = [
   "2019-12[u-ca=iso8601]",
   "2019-12[Africa/Abidjan][u-ca=iso8601]",
   "2019-12-15T00+00:00",
+  "2019-12-15T00+00:00:00,0",
+  "2019-12-15T00+00:00:00.000000000",
+  "2019-12-15T00+0000",
+  "2019-12-15T00+000000,0",
+  "2019-12-15T00+000000.000000000",
   "2019-12-15T00+00:00[UTC]",
   "2019-12-15T00+00:00[!UTC]",
   "2019-12-15T00-02:30[America/St_Johns]",
diff --git a/test/built-ins/Temporal/PlainYearMonth/from/argument-string-date-with-utc-offset.js b/test/built-ins/Temporal/PlainYearMonth/from/argument-string-date-with-utc-offset.js
@@ -14,6 +14,11 @@ const validStrings = [
   "2019-12[u-ca=iso8601]",
   "2019-12[Africa/Abidjan][u-ca=iso8601]",
   "2019-12-15T00+00:00",
+  "2019-12-15T00+00:00:00,0",
+  "2019-12-15T00+00:00:00.000000000",
+  "2019-12-15T00+0000",
+  "2019-12-15T00+000000,0",
+  "2019-12-15T00+000000.000000000",
   "2019-12-15T00+00:00[UTC]",
   "2019-12-15T00+00:00[!UTC]",
   "2019-12-15T00-02:30[America/St_Johns]",
diff --git a/test/built-ins/Temporal/PlainYearMonth/prototype/equals/argument-string-date-with-utc-offset.js b/test/built-ins/Temporal/PlainYearMonth/prototype/equals/argument-string-date-with-utc-offset.js
@@ -15,6 +15,11 @@ const validStrings = [
   "2019-12[u-ca=iso8601]",
   "2019-12[Africa/Abidjan][u-ca=iso8601]",
   "2019-12-15T00+00:00",
+  "2019-12-15T00+00:00:00,0",
+  "2019-12-15T00+00:00:00.000000000",
+  "2019-12-15T00+0000",
+  "2019-12-15T00+000000,0",
+  "2019-12-15T00+000000.000000000",
   "2019-12-15T00+00:00[UTC]",
   "2019-12-15T00+00:00[!UTC]",
   "2019-12-15T00-02:30[America/St_Johns]",
diff --git a/test/built-ins/Temporal/PlainYearMonth/prototype/since/argument-string-date-with-utc-offset.js b/test/built-ins/Temporal/PlainYearMonth/prototype/since/argument-string-date-with-utc-offset.js
@@ -16,6 +16,11 @@ const validStrings = [
   "2019-12[u-ca=iso8601]",
   "2019-12[Africa/Abidjan][u-ca=iso8601]",
   "2019-12-15T00+00:00",
+  "2019-12-15T00+00:00:00,0",
+  "2019-12-15T00+00:00:00.000000000",
+  "2019-12-15T00+0000",
+  "2019-12-15T00+000000,0",
+  "2019-12-15T00+000000.000000000",
   "2019-12-15T00+00:00[UTC]",
   "2019-12-15T00+00:00[!UTC]",
   "2019-12-15T00-02:30[America/St_Johns]",
diff --git a/test/built-ins/Temporal/PlainYearMonth/prototype/until/argument-string-date-with-utc-offset.js b/test/built-ins/Temporal/PlainYearMonth/prototype/until/argument-string-date-with-utc-offset.js
@@ -16,6 +16,11 @@ const validStrings = [
   "2019-12[u-ca=iso8601]",
   "2019-12[Africa/Abidjan][u-ca=iso8601]",
   "2019-12-15T00+00:00",
+  "2019-12-15T00+00:00:00,0",
+  "2019-12-15T00+00:00:00.000000000",
+  "2019-12-15T00+0000",
+  "2019-12-15T00+000000,0",
+  "2019-12-15T00+000000.000000000",
   "2019-12-15T00+00:00[UTC]",
   "2019-12-15T00+00:00[!UTC]",
   "2019-12-15T00-02:30[America/St_Johns]",
diff --git a/test/built-ins/Temporal/ZonedDateTime/compare/argument-string-date-with-utc-offset.js b/test/built-ins/Temporal/ZonedDateTime/compare/argument-string-date-with-utc-offset.js
@@ -11,6 +11,11 @@ const validStrings = [
   "1970-01-01T00Z[UTC]",
   "1970-01-01T00Z[!UTC]",
   "1970-01-01T00+00:00[UTC]",
+  "1970-01-01T00+00:00:00,0[UTC]",
+  "1970-01-01T00+00:00:00.000000000[UTC]",
+  "1970-01-01T00+0000[UTC]",
+  "1970-01-01T00+000000,0[UTC]",
+  "1970-01-01T00+000000.000000000[UTC]",
   "1970-01-01T00+00:00[!UTC]",
 ];
 
diff --git a/test/built-ins/Temporal/ZonedDateTime/from/argument-string-date-with-utc-offset.js b/test/built-ins/Temporal/ZonedDateTime/from/argument-string-date-with-utc-offset.js
@@ -11,6 +11,11 @@ const validStrings = [
   "1970-01-01T00Z[UTC]",
   "1970-01-01T00Z[!UTC]",
   "1970-01-01T00+00:00[UTC]",
+  "1970-01-01T00+00:00:00,0[UTC]",
+  "1970-01-01T00+00:00:00.000000000[UTC]",
+  "1970-01-01T00+0000[UTC]",
+  "1970-01-01T00+000000,0[UTC]",
+  "1970-01-01T00+000000.000000000[UTC]",
   "1970-01-01T00+00:00[!UTC]",
 ];
 
diff --git a/test/built-ins/Temporal/ZonedDateTime/prototype/equals/argument-string-date-with-utc-offset.js b/test/built-ins/Temporal/ZonedDateTime/prototype/equals/argument-string-date-with-utc-offset.js
@@ -13,6 +13,11 @@ const validStrings = [
   "1970-01-01T00Z[UTC]",
   "1970-01-01T00Z[!UTC]",
   "1970-01-01T00+00:00[UTC]",
+  "1970-01-01T00+00:00:00,0[UTC]",
+  "1970-01-01T00+00:00:00.000000000[UTC]",
+  "1970-01-01T00+0000[UTC]",
+  "1970-01-01T00+000000,0[UTC]",
+  "1970-01-01T00+000000.000000000[UTC]",
   "1970-01-01T00+00:00[!UTC]",
 ];
 
diff --git a/test/built-ins/Temporal/ZonedDateTime/prototype/since/argument-string-date-with-utc-offset.js b/test/built-ins/Temporal/ZonedDateTime/prototype/since/argument-string-date-with-utc-offset.js
diff --git a/test/built-ins/Temporal/ZonedDateTime/prototype/until/argument-string-date-with-utc-offset.js b/test/built-ins/Temporal/ZonedDateTime/prototype/until/argument-string-date-with-utc-offset.js
diff --git a/test/built-ins/Temporal/ZonedDateTime/prototype/withPlainTime/argument-string-date-with-utc-offset.js b/test/built-ins/Temporal/ZonedDateTime/prototype/withPlainTime/argument-string-date-with-utc-offset.js
