diff --git a/Libraries/LibJS/Runtime/Temporal/PlainDateTime.cpp b/Libraries/LibJS/Runtime/Temporal/PlainDateTime.cpp
index 62293e53451..b803e6af887 100644
--- a/Libraries/LibJS/Runtime/Temporal/PlainDateTime.cpp
+++ b/Libraries/LibJS/Runtime/Temporal/PlainDateTime.cpp
@@ -405,8 +405,8 @@ ThrowCompletionOr<GC::Ref<Duration>> difference_temporal_plain_date_time(VM& vm,
     // 6. Let internalDuration be ? DifferencePlainDateTimeWithRounding(dateTime.[[ISODateTime]], other.[[ISODateTime]], dateTime.[[Calendar]], settings.[[LargestUnit]], settings.[[RoundingIncrement]], settings.[[SmallestUnit]], settings.[[RoundingMode]]).
     auto internal_duration = TRY(difference_plain_date_time_with_rounding(vm, date_time.iso_date_time(), other->iso_date_time(), date_time.calendar(), settings.largest_unit, settings.rounding_increment, settings.smallest_unit, settings.rounding_mode));
 
-    // 7. Let result be ? TemporalDurationFromInternal(internalDuration, settings.[[LargestUnit]]).
-    auto result = TRY(temporal_duration_from_internal(vm, internal_duration, settings.largest_unit));
+    // 7. Let result be ! TemporalDurationFromInternal(internalDuration, settings.[[LargestUnit]]).
+    auto result = MUST(temporal_duration_from_internal(vm, internal_duration, settings.largest_unit));
 
     // 8. If operation is SINCE, set result to CreateNegatedTemporalDuration(result).
     if (operation == DurationOperation::Since)
diff --git a/Libraries/LibJS/Runtime/Temporal/PlainYearMonth.cpp b/Libraries/LibJS/Runtime/Temporal/PlainYearMonth.cpp
index 61fb3b1a4b4..916b3992fd7 100644
--- a/Libraries/LibJS/Runtime/Temporal/PlainYearMonth.cpp
+++ b/Libraries/LibJS/Runtime/Temporal/PlainYearMonth.cpp
@@ -259,8 +259,8 @@ ThrowCompletionOr<GC::Ref<Duration>> difference_temporal_plain_year_month(VM& vm
         duration = TRY(round_relative_duration(vm, move(duration), dest_epoch_ns, iso_date_time, {}, calendar, settings.largest_unit, settings.rounding_increment, settings.smallest_unit, settings.rounding_mode));
     }
 
-    // 17. Let result be ? TemporalDurationFromInternal(duration, DAY).
-    auto result = TRY(temporal_duration_from_internal(vm, duration, Unit::Day));
+    // 17. Let result be ! TemporalDurationFromInternal(duration, DAY).
+    auto result = MUST(temporal_duration_from_internal(vm, duration, Unit::Day));
 
     // 18. If operation is SINCE, set result to CreateNegatedTemporalDuration(result).
     if (operation == DurationOperation::Since)
diff --git a/Libraries/LibJS/Runtime/Temporal/ZonedDateTime.cpp b/Libraries/LibJS/Runtime/Temporal/ZonedDateTime.cpp
index 2ee2ec98699..7f05acf0af3 100644
--- a/Libraries/LibJS/Runtime/Temporal/ZonedDateTime.cpp
+++ b/Libraries/LibJS/Runtime/Temporal/ZonedDateTime.cpp
@@ -576,8 +576,8 @@ ThrowCompletionOr<GC::Ref<Duration>> difference_temporal_zoned_date_time(VM& vm,
     // 9. Let internalDuration be ? DifferenceZonedDateTimeWithRounding(zonedDateTime.[[EpochNanoseconds]], other.[[EpochNanoseconds]], zonedDateTime.[[TimeZone]], zonedDateTime.[[Calendar]], settings.[[LargestUnit]], settings.[[RoundingIncrement]], settings.[[SmallestUnit]], settings.[[RoundingMode]]).
     auto internal_duration = TRY(difference_zoned_date_time_with_rounding(vm, zoned_date_time.epoch_nanoseconds()->big_integer(), other->epoch_nanoseconds()->big_integer(), zoned_date_time.time_zone(), zoned_date_time.calendar(), settings.largest_unit, settings.rounding_increment, settings.smallest_unit, settings.rounding_mode));
 
-    // 10. Let result be ? TemporalDurationFromInternal(internalDuration, HOUR).
-    auto result = TRY(temporal_duration_from_internal(vm, internal_duration, Unit::Hour));
+    // 10. Let result be ! TemporalDurationFromInternal(internalDuration, HOUR).
+    auto result = MUST(temporal_duration_from_internal(vm, internal_duration, Unit::Hour));
 
     // 11. If operation is SINCE, set result to CreateNegatedTemporalDuration(result).
     if (operation == DurationOperation::Since)