diff --git a/ext/date/php_date.c b/ext/date/php_date.c
index 25b9bf7cbe6..692136bbad2 100644
--- a/ext/date/php_date.c
+++ b/ext/date/php_date.c
@@ -1486,7 +1486,8 @@ static void create_date_period_datetime(timelib_time *datetime, zend_class_entry
 	if (datetime) {
 		php_date_obj *date_obj;
 
-		object_init_ex(zv, ce);
+		zend_result result = object_init_ex(zv, ce);
+		ZEND_ASSERT(result == SUCCESS && "should succeed as it reuses an existing object's ce");
 		date_obj = Z_PHPDATE_P(zv);
 		date_obj->time = timelib_time_clone(datetime);
 	} else {
@@ -2318,6 +2319,7 @@ static void add_common_properties(HashTable *myht, zend_object *zobj)
 }
 
 /* Advanced Interface */
+/* TODO: remove this API because it is unsafe to use as-is, as it does not propagate the failure/success status. */
 PHPAPI zval *php_date_instantiate(zend_class_entry *pce, zval *object) /* {{{ */
 {
 	object_init_ex(object, pce);
@@ -2595,7 +2597,9 @@ PHP_FUNCTION(date_create_from_format)
 		Z_PARAM_OBJECT_OF_CLASS_OR_NULL(timezone_object, date_ce_timezone)
 	ZEND_PARSE_PARAMETERS_END();
 
-	php_date_instantiate(execute_data->This.value.ce ? execute_data->This.value.ce : date_ce_date, return_value);
+	if (object_init_ex(return_value, execute_data->This.value.ce ? execute_data->This.value.ce : date_ce_date) != SUCCESS) {
+		RETURN_THROWS();
+	}
 	if (!php_date_initialize(Z_PHPDATE_P(return_value), time_str, time_str_len, format_str, timezone_object, PHP_DATE_INIT_FORMAT)) {
 		zval_ptr_dtor(return_value);
 		RETURN_FALSE;
@@ -2617,7 +2621,9 @@ PHP_FUNCTION(date_create_immutable_from_format)
 		Z_PARAM_OBJECT_OF_CLASS_OR_NULL(timezone_object, date_ce_timezone)
 	ZEND_PARSE_PARAMETERS_END();
 
-	php_date_instantiate(execute_data->This.value.ce ? execute_data->This.value.ce : date_ce_immutable, return_value);
+	if (object_init_ex(return_value, execute_data->This.value.ce ? execute_data->This.value.ce : date_ce_immutable) != SUCCESS) {
+		RETURN_THROWS();
+	}
 	if (!php_date_initialize(Z_PHPDATE_P(return_value), time_str, time_str_len, format_str, timezone_object, PHP_DATE_INIT_FORMAT)) {
 		zval_ptr_dtor(return_value);
 		RETURN_FALSE;
@@ -2673,7 +2679,9 @@ PHP_METHOD(DateTime, createFromImmutable)
 	old_obj = Z_PHPDATE_P(datetimeimmutable_object);
 	DATE_CHECK_INITIALIZED(old_obj->time, Z_OBJCE_P(datetimeimmutable_object));
 
-	php_date_instantiate(execute_data->This.value.ce ? execute_data->This.value.ce : date_ce_date, return_value);
+	if (object_init_ex(return_value, execute_data->This.value.ce ? execute_data->This.value.ce : date_ce_date) != SUCCESS) {
+		RETURN_THROWS();
+	}
 	new_obj = Z_PHPDATE_P(return_value);
 
 	new_obj->time = timelib_time_clone(old_obj->time);
@@ -2694,7 +2702,9 @@ PHP_METHOD(DateTime, createFromInterface)
 	old_obj = Z_PHPDATE_P(datetimeinterface_object);
 	DATE_CHECK_INITIALIZED(old_obj->time, Z_OBJCE_P(datetimeinterface_object));
 
-	php_date_instantiate(execute_data->This.value.ce ? execute_data->This.value.ce : date_ce_date, return_value);
+	if (object_init_ex(return_value, execute_data->This.value.ce ? execute_data->This.value.ce : date_ce_date) != SUCCESS) {
+		RETURN_THROWS();
+	}
 	new_obj = Z_PHPDATE_P(return_value);
 
 	new_obj->time = timelib_time_clone(old_obj->time);
@@ -2712,7 +2722,9 @@ PHP_METHOD(DateTime, createFromTimestamp)
 		Z_PARAM_NUMBER(value)
 	ZEND_PARSE_PARAMETERS_END();
 
-	php_date_instantiate(execute_data->This.value.ce ? execute_data->This.value.ce : date_ce_date, &new_object);
+	if (object_init_ex(&new_object, execute_data->This.value.ce ? execute_data->This.value.ce : date_ce_date) != SUCCESS) {
+		RETURN_THROWS();
+	}
 	new_dateobj = Z_PHPDATE_P(&new_object);
 
 	switch (Z_TYPE_P(value)) {
@@ -2748,7 +2760,9 @@ PHP_METHOD(DateTimeImmutable, createFromMutable)
 	old_obj = Z_PHPDATE_P(datetime_object);
 	DATE_CHECK_INITIALIZED(old_obj->time, Z_OBJCE_P(datetime_object));
 
-	php_date_instantiate(execute_data->This.value.ce ? execute_data->This.value.ce : date_ce_immutable, return_value);
+	if (object_init_ex(return_value, execute_data->This.value.ce ? execute_data->This.value.ce : date_ce_immutable) != SUCCESS) {
+		RETURN_THROWS();
+	}
 	new_obj = Z_PHPDATE_P(return_value);
 
 	new_obj->time = timelib_time_clone(old_obj->time);
@@ -2769,7 +2783,9 @@ PHP_METHOD(DateTimeImmutable, createFromInterface)
 	old_obj = Z_PHPDATE_P(datetimeinterface_object);
 	DATE_CHECK_INITIALIZED(old_obj->time, Z_OBJCE_P(datetimeinterface_object));
 
-	php_date_instantiate(execute_data->This.value.ce ? execute_data->This.value.ce : date_ce_immutable, return_value);
+	if (object_init_ex(return_value, execute_data->This.value.ce ? execute_data->This.value.ce : date_ce_immutable) != SUCCESS) {
+		RETURN_THROWS();
+	}
 	new_obj = Z_PHPDATE_P(return_value);
 
 	new_obj->time = timelib_time_clone(old_obj->time);
@@ -2787,7 +2803,9 @@ PHP_METHOD(DateTimeImmutable, createFromTimestamp)
 		Z_PARAM_NUMBER(value)
 	ZEND_PARSE_PARAMETERS_END();
 
-	php_date_instantiate(execute_data->This.value.ce ? execute_data->This.value.ce : date_ce_immutable, &new_object);
+	if (object_init_ex(&new_object, execute_data->This.value.ce ? execute_data->This.value.ce : date_ce_immutable) != SUCCESS) {
+		RETURN_THROWS();
+	}
 	new_dateobj = Z_PHPDATE_P(&new_object);
 
 	switch (Z_TYPE_P(value)) {
@@ -5108,7 +5126,9 @@ PHP_METHOD(DatePeriod, createFromISO8601String)
 		Z_PARAM_LONG(options)
 	ZEND_PARSE_PARAMETERS_END();
 
-	object_init_ex(return_value, execute_data->This.value.ce ? execute_data->This.value.ce : date_ce_period);
+	if (object_init_ex(return_value, execute_data->This.value.ce ? execute_data->This.value.ce : date_ce_period) != SUCCESS) {
+		RETURN_THROWS();
+	}
 	dpobj = Z_PHPPERIOD_P(return_value);
 
 	dpobj->current = NULL;
diff --git a/ext/date/tests/instantiate_uninstantiable_classes.phpt b/ext/date/tests/instantiate_uninstantiable_classes.phpt
new file mode 100644
index 00000000000..634ed635b2d
--- /dev/null
+++ b/ext/date/tests/instantiate_uninstantiable_classes.phpt
@@ -0,0 +1,82 @@
+--TEST--
+Instantiating uninstantiable classes via static constructors
+--FILE--
+<?php
+
+abstract class MyDatePeriod extends DatePeriod {
+    public abstract function foo();
+}
+
+abstract class MyDateTime extends DateTime {
+    public abstract function foo();
+}
+
+abstract class MyDateTimeImmutable extends DateTimeImmutable {
+    public abstract function foo();
+}
+
+try {
+    MyDatePeriod::createFromISO8601String('R5');
+} catch (Error $e) {
+    echo $e->getMessage(), "\n";
+}
+
+try {
+    MyDateTime::createFromFormat('Y-m-d', '2025-01-01');
+} catch (Error $e) {
+    echo $e->getMessage(), "\n";
+}
+
+try {
+    MyDateTime::createFromImmutable(new DateTimeImmutable());
+} catch (Error $e) {
+    echo $e->getMessage(), "\n";
+}
+
+try {
+    MyDateTime::createFromInterface(new DateTimeImmutable());
+} catch (Error $e) {
+    echo $e->getMessage(), "\n";
+}
+
+try {
+    MyDateTime::createFromTimestamp(0);
+} catch (Error $e) {
+    echo $e->getMessage(), "\n";
+}
+
+try {
+    MyDateTimeImmutable::createFromFormat('Y-m-d', '2025-01-01');
+} catch (Error $e) {
+    echo $e->getMessage(), "\n";
+}
+
+try {
+    MyDateTimeImmutable::createFromMutable(new DateTime());
+} catch (Error $e) {
+    echo $e->getMessage(), "\n";
+}
+
+try {
+    MyDateTimeImmutable::createFromInterface(new DateTime());
+} catch (Error $e) {
+    echo $e->getMessage(), "\n";
+}
+
+try {
+    MyDateTimeImmutable::createFromTimestamp(0);
+} catch (Error $e) {
+    echo $e->getMessage(), "\n";
+}
+
+?>
+--EXPECT--
+Cannot instantiate abstract class MyDatePeriod
+Cannot instantiate abstract class MyDateTime
+Cannot instantiate abstract class MyDateTime
+Cannot instantiate abstract class MyDateTime
+Cannot instantiate abstract class MyDateTime
+Cannot instantiate abstract class MyDateTimeImmutable
+Cannot instantiate abstract class MyDateTimeImmutable
+Cannot instantiate abstract class MyDateTimeImmutable
+Cannot instantiate abstract class MyDateTimeImmutable