From 1ec8b3d17bb20aa049cb943559b202906e35d4e3 Mon Sep 17 00:00:00 2001
From: Michael-Macbook <lcf_boy@hotmail.com>
Date: Mon, 7 Apr 2025 20:29:59 +1200
Subject: [PATCH 1/2] fixed #11263

---
 src/Query/Builder.php | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/Query/Builder.php b/src/Query/Builder.php
index 8098ee9740..4a2ebb2147 100644
--- a/src/Query/Builder.php
+++ b/src/Query/Builder.php
@@ -186,7 +186,11 @@ protected function addArrayOfWheres($column, $boolean, $method = 'where')
 
     public function prepareValueAndOperator($value, $operator, $useDefault = false)
     {
-        $loweredOperator = strtolower((string) $operator);
+        if ($operator instanceof DateTimeInterface) {
+            $loweredOperator = Carbon::parse($operator)->toDateTimeString();
+        } else {
+            $loweredOperator = strtolower((string) $operator);
+        }
 
         if ($useDefault) {
             return [$operator, '='];

From a2c0c2633a108915abf0d7cc25a3c85244dc2925 Mon Sep 17 00:00:00 2001
From: Michael-Macbook <lcf_boy@hotmail.com>
Date: Mon, 7 Apr 2025 22:57:00 +1200
Subject: [PATCH 2/2] Add test for retrieving previous and next entries in a
 dated ascending collection with time enabled

---
 tests/Tags/Collection/CollectionTest.php | 28 ++++++++++++++++++++++++
 1 file changed, 28 insertions(+)

diff --git a/tests/Tags/Collection/CollectionTest.php b/tests/Tags/Collection/CollectionTest.php
index 20c6e06f01..0923daf349 100644
--- a/tests/Tags/Collection/CollectionTest.php
+++ b/tests/Tags/Collection/CollectionTest.php
@@ -437,6 +437,34 @@ public function it_can_get_previous_and_next_entries_in_a_dated_asc_collection_w
         $this->assertEquals(['Danish'], $this->runTagAndGetTitles('newer')); // Alias of next when date:asc
     }
 
+    /**
+     * https://github.com/statamic/cms/issues/11263
+     */
+    #[Test]
+    public function it_can_get_previous_and_next_entries_in_a_dated_asc_collection_when_date_and_time_enabled()
+    {
+        $this->foods->dated(true)->save();
+        $blueprint = Blueprint::makeFromFields(['date' => ['type' => 'date', 'time_enabled' => true, 'time_seconds_enabled' => true]])->setHandle('test');
+        Blueprint::shouldReceive('in')->with('collections/foods')->once()->andReturn(collect([$blueprint]));
+
+        $this->makeEntry($this->foods, 'a')->date('2019-03-10-1250')->set('title', 'Apple')->save();
+        $this->makeEntry($this->foods, 'b')->date('2019-03-10-1251')->set('title', 'Banana')->save();
+        $this->makeEntry($this->foods, 'c')->date('2019-03-10-1252')->set('title', 'Carrot')->save();
+        $this->makeEntry($this->foods, 'd')->date('2019-03-10-1253')->set('title', 'Danish')->save();
+        $this->makeEntry($this->foods, 'e')->date('2019-03-10-1254')->set('title', 'Egg')->save();
+        $this->makeEntry($this->foods, 'f')->date('2019-03-10-1255')->set('title', 'Fig')->save();
+        $this->setTagParameters([
+            'in' => 'foods',
+            'current' => $this->findEntryByTitle('Carrot')->id(),
+            'order_by' => 'date:asc|title:asc',
+            'limit' => 1,
+        ]);
+        $this->assertEquals(['Banana'], $this->runTagAndGetTitles('previous'));
+        $this->assertEquals(['Banana'], $this->runTagAndGetTitles('older')); // Alias of previous when date:desc
+        $this->assertEquals(['Danish'], $this->runTagAndGetTitles('next'));
+        $this->assertEquals(['Danish'], $this->runTagAndGetTitles('newer')); // Alias of next when date:asc
+    }
+
     #[Test]
     public function it_can_get_previous_and_next_entries_in_an_orderable_asc_collection()
     {