diff --git a/test/intl402/Temporal/PlainDate/prototype/add/constrain-day-dangi.js b/test/intl402/Temporal/PlainDate/prototype/add/constrain-day-dangi.js
index 79307c7884..d83427218c 100644
--- a/test/intl402/Temporal/PlainDate/prototype/add/constrain-day-dangi.js
+++ b/test/intl402/Temporal/PlainDate/prototype/add/constrain-day-dangi.js
@@ -56,10 +56,10 @@ assert.throws(RangeError, function () {
 
 TemporalHelpers.assertPlainDate(
   longLeapMonth2.add(years19n),
-  1993, 4, "M03L", 29, "long M06L constrains to 29 when subtraction lands in year with short M06L");
+  1993, 4, "M03L", 29, "long M03L constrains to 29 when subtraction lands in year with short M03L");
 assert.throws(RangeError, function () {
   longLeapMonth2.add(years19n, options);
-}, "long M06L rejects when subtraction lands in year with short M06L");
+}, "long M03L rejects when subtraction lands in year with short M03L");
 
 // Constraining day 30 of each regular month to day 29
 
diff --git a/test/intl402/Temporal/PlainDate/prototype/subtract/constrain-day-dangi.js b/test/intl402/Temporal/PlainDate/prototype/subtract/constrain-day-dangi.js
index 26f86c2541..e4af99eb81 100644
--- a/test/intl402/Temporal/PlainDate/prototype/subtract/constrain-day-dangi.js
+++ b/test/intl402/Temporal/PlainDate/prototype/subtract/constrain-day-dangi.js
@@ -56,10 +56,10 @@ assert.throws(RangeError, function () {
 
 TemporalHelpers.assertPlainDate(
   longLeapMonth2.subtract(years19n),
-  1993, 4, "M03L", 29, "long M06L constrains to 29 when subtraction lands in year with short M06L");
+  1993, 4, "M03L", 29, "long M03L constrains to 29 when subtraction lands in year with short M03L");
 assert.throws(RangeError, function () {
   longLeapMonth2.subtract(years19n, options);
-}, "long M06L rejects when subtraction lands in year with short M06L");
+}, "long M03L rejects when subtraction lands in year with short M03L");
 
 // Constraining day 30 of each regular month to day 29
 
diff --git a/test/intl402/Temporal/PlainDateTime/prototype/add/constrain-day-dangi.js b/test/intl402/Temporal/PlainDateTime/prototype/add/constrain-day-dangi.js
index 57d0fb7051..52992200e8 100644
--- a/test/intl402/Temporal/PlainDateTime/prototype/add/constrain-day-dangi.js
+++ b/test/intl402/Temporal/PlainDateTime/prototype/add/constrain-day-dangi.js
@@ -56,10 +56,10 @@ assert.throws(RangeError, function () {
 
 TemporalHelpers.assertPlainDateTime(
   longLeapMonth2.add(years19n),
-  1993, 4, "M03L", 29, 12, 34, 0, 0, 0, 0, "long M06L constrains to 29 when subtraction lands in year with short M06L");
+  1993, 4, "M03L", 29, 12, 34, 0, 0, 0, 0, "long M03L constrains to 29 when subtraction lands in year with short M03L");
 assert.throws(RangeError, function () {
   longLeapMonth2.add(years19n, options);
-}, "long M06L rejects when subtraction lands in year with short M06L");
+}, "long M03L rejects when subtraction lands in year with short M03L");
 
 // Constraining day 30 of each regular month to day 29
 
diff --git a/test/intl402/Temporal/PlainDateTime/prototype/subtract/constrain-day-dangi.js b/test/intl402/Temporal/PlainDateTime/prototype/subtract/constrain-day-dangi.js
index f346c2d8c6..f7dad448a5 100644
--- a/test/intl402/Temporal/PlainDateTime/prototype/subtract/constrain-day-dangi.js
+++ b/test/intl402/Temporal/PlainDateTime/prototype/subtract/constrain-day-dangi.js
@@ -56,10 +56,10 @@ assert.throws(RangeError, function () {
 
 TemporalHelpers.assertPlainDateTime(
   longLeapMonth2.subtract(years19n),
-  1993, 4, "M03L", 29, 12, 34, 0, 0, 0, 0, "long M06L constrains to 29 when subtraction lands in year with short M06L");
+  1993, 4, "M03L", 29, 12, 34, 0, 0, 0, 0, "long M03L constrains to 29 when subtraction lands in year with short M03L");
 assert.throws(RangeError, function () {
   longLeapMonth2.subtract(years19n, options);
-}, "long M06L rejects when subtraction lands in year with short M06L");
+}, "long M03L rejects when subtraction lands in year with short M03L");
 
 // Constraining day 30 of each regular month to day 29
 
diff --git a/test/intl402/Temporal/ZonedDateTime/prototype/add/constrain-day-dangi.js b/test/intl402/Temporal/ZonedDateTime/prototype/add/constrain-day-dangi.js
index 57d23e9146..da4fbbac86 100644
--- a/test/intl402/Temporal/ZonedDateTime/prototype/add/constrain-day-dangi.js
+++ b/test/intl402/Temporal/ZonedDateTime/prototype/add/constrain-day-dangi.js
@@ -56,10 +56,10 @@ assert.throws(RangeError, function () {
 
 TemporalHelpers.assertPlainDateTime(
   longLeapMonth2.add(years19n).toPlainDateTime(),
-  1993, 4, "M03L", 29, 12, 34, 0, 0, 0, 0, "long M06L constrains to 29 when subtraction lands in year with short M06L");
+  1993, 4, "M03L", 29, 12, 34, 0, 0, 0, 0, "long M03L constrains to 29 when subtraction lands in year with short M03L");
 assert.throws(RangeError, function () {
   longLeapMonth2.add(years19n, options);
-}, "long M06L rejects when subtraction lands in year with short M06L");
+}, "long M03L rejects when subtraction lands in year with short M03L");
 
 // Constraining day 30 of each regular month to day 29
 
diff --git a/test/intl402/Temporal/ZonedDateTime/prototype/subtract/constrain-day-dangi.js b/test/intl402/Temporal/ZonedDateTime/prototype/subtract/constrain-day-dangi.js
index cc37db182f..1ae000e3de 100644
--- a/test/intl402/Temporal/ZonedDateTime/prototype/subtract/constrain-day-dangi.js
+++ b/test/intl402/Temporal/ZonedDateTime/prototype/subtract/constrain-day-dangi.js
@@ -56,10 +56,10 @@ assert.throws(RangeError, function () {
 
 TemporalHelpers.assertPlainDateTime(
   longLeapMonth2.subtract(years19n).toPlainDateTime(),
-  1993, 4, "M03L", 29, 12, 34, 0, 0, 0, 0, "long M06L constrains to 29 when subtraction lands in year with short M06L");
+  1993, 4, "M03L", 29, 12, 34, 0, 0, 0, 0, "long M03L constrains to 29 when subtraction lands in year with short M03L");
 assert.throws(RangeError, function () {
   longLeapMonth2.subtract(years19n, options);
-}, "long M06L rejects when subtraction lands in year with short M06L");
+}, "long M03L rejects when subtraction lands in year with short M03L");
 
 // Constraining day 30 of each regular month to day 29