diff --git a/src/Phaseolies/Database/Temporal/TemporalBuilder.php b/src/Phaseolies/Database/Temporal/TemporalBuilder.php
index 24838e3f..0e503543 100644
--- a/src/Phaseolies/Database/Temporal/TemporalBuilder.php
+++ b/src/Phaseolies/Database/Temporal/TemporalBuilder.php
@@ -176,29 +176,104 @@ private function applyPhpConditions(array $models): array
             return $models;
         }
 
-        return array_values(array_filter($models, function (Model $model) {
-            $pass = true;
+        return array_values(array_filter(
+            $models,
+            fn (Model $model) => $this->matchesConditions($model, $this->conditions)
+        ));
+    }
 
-            foreach ($this->conditions as $condition) {
-                // Skip typed conditions (NESTED, EXISTS, RAW_WHERE, etc.)
-                if (isset($condition['type'])) {
-                    continue;
-                }
+    /**
+     * Check a model against a list of conditions
+     *
+     * @param Model $model
+     * @param array $conditions
+     * @return bool
+     * @throws \LogicException
+     */
+    private function matchesConditions(Model $model, array $conditions): bool
+    {
+        $seen        = false;
+        $anyGroup    = false;
+        $groupResult = true;
 
-                [$boolean, $field, $operator, $value] = array_pad($condition, 4, null);
-                $extra = $condition[4] ?? null;
+        foreach ($conditions as $condition) {
+            if (($condition['type'] ?? null) === 'RAW_GROUP_BY') {
+                continue;
+            }
 
-                // Strip table prefix if present (e.g. "contracts.status" → "status")
-                $column = str_contains($field, '.') ? explode('.', $field, 2)[1] : $field;
-                $actual = $model->{$column} ?? null;
+            $boolean = strtoupper(isset($condition['type'])
+                ? ($condition['boolean'] ?? 'AND')
+                : ($condition[0] ?? 'AND'));
 
-                $result = $this->evaluateCondition($actual, $operator, $value, $extra);
+            $result = $this->matchesCondition($model, $condition);
 
-                $pass = $boolean === 'OR' ? ($pass || $result) : ($pass && $result);
+            if (!$seen) {
+                $groupResult = $result;
+                $seen = true;
+            } elseif ($boolean === 'OR') {
+                $anyGroup    = $anyGroup || $groupResult;
+                $groupResult = $result;
+            } else {
+                $groupResult = $groupResult && $result;
             }
+        }
+
+        return !$seen || $anyGroup || $groupResult;
+    }
+
+    /**
+     * Check a model against a single condition entry.
+     *
+     * @param Model $model
+     * @param array $condition
+     * @return bool
+     * @throws \LogicException
+     */
+    private function matchesCondition(Model $model, array $condition): bool
+    {
+        if (isset($condition['type'])) {
+            if ($condition['type'] === 'NESTED') {
+                return $this->matchesConditions($model, $condition['query']->conditions);
+            }
+
+            throw new \LogicException(
+                "Temporal queries filter snapshots in PHP, so {$condition['type']} conditions are not supported. "
+                    . 'Use where(), orWhere(), whereIn(), whereNull(), whereBetween() or a nested where() instead.'
+            );
+        }
+
+        [, $field, $operator, $value] = array_pad($condition, 4, null);
+        $extra = $condition[4] ?? null;
+
+        // Strip table prefix if present (e.g. "contracts.status" → "status")
+        $column = str_contains($field, '.') ? explode('.', $field, 2)[1] : $field;
+        $actual = $model->{$column} ?? null;
+
+        return $this->evaluateCondition($actual, $operator, $value, $extra);
+    }
+
+    /**
+     * Add a nested WHERE group. The nested query keeps the same point in time.
+     *
+     * @param callable $callback
+     * @param string $boolean
+     * @return self
+     */
+    public function whereNested(callable $callback, string $boolean = 'AND'): self
+    {
+        $nested = new self($this->pdo, $this->table, $this->modelClass, $this->rowPerPage, $this->datetime);
+
+        $callback($nested);
+
+        if (!empty($nested->conditions)) {
+            $this->conditions[] = [
+                'type' => 'NESTED',
+                'query' => $nested,
+                'boolean' => $boolean,
+            ];
+        }
 
-            return $pass;
-        }));
+        return $this;
     }
 
     /**
diff --git a/tests/Model/TemporalModelTest.php b/tests/Model/TemporalModelTest.php
index 0ab04909..e6022a37 100644
--- a/tests/Model/TemporalModelTest.php
+++ b/tests/Model/TemporalModelTest.php
@@ -605,6 +605,112 @@ private function diffReport(array $from, array $to): array
         return $report;
     }
 
+    public function testTemporalOrWhereAsFirstConditionOnlyReturnsMatches(): void
+    {
+        $at = $this->seedForBooleanTests();
+
+        $this->assertSame(['B', 'D'], $this->titlesOf(MockTemporalRecord::at($at)->orWhere('status', 'closed')));
+        $this->assertSame(['C'], $this->titlesOf(MockTemporalRecord::at($at)->orWhereIn('status', ['draft'])));
+        $this->assertSame([], $this->titlesOf(MockTemporalRecord::at($at)->orWhere('status', 'nothing')));
+    }
+
+    public function testTemporalWhereAndOrWhereMatchSqlSemantics(): void
+    {
+        $at = $this->seedForBooleanTests();
+
+        $this->assertSame(
+            ['A', 'B', 'D'],
+            $this->titlesOf(MockTemporalRecord::at($at)->where('status', 'open')->orWhere('status', 'closed'))
+        );
+        $this->assertSame(
+            ['A', 'D'],
+            $this->titlesOf(MockTemporalRecord::at($at)->where('status', 'closed')->where('body', '1')->orWhere('status', 'open'))
+        );
+    }
+
+    public function testTemporalAndBindsTighterThanOr(): void
+    {
+        $at = $this->seedForBooleanTests();
+
+        // open OR (closed AND body = 2), not (open OR closed) AND body = 2
+        $this->assertSame(
+            ['A', 'B'],
+            $this->titlesOf(
+                MockTemporalRecord::at($at)->where('status', 'open')->orWhere('status', 'closed')->where('body', '2')
+            )
+        );
+    }
+
+    public function testTemporalIgnoresTheBooleanOfTheFirstCondition(): void
+    {
+        $at = $this->seedForBooleanTests();
+
+        // orWhere(closed) AND body = 1
+        $this->assertSame(
+            ['D'],
+            $this->titlesOf(MockTemporalRecord::at($at)->orWhere('status', 'closed')->where('body', '1'))
+        );
+    }
+
+    public function testTemporalNestedWhereGroups(): void
+    {
+        $at = $this->seedForBooleanTests();
+
+        $this->assertSame(
+            ['D'],
+            $this->titlesOf(
+                MockTemporalRecord::at($at)
+                    ->where(function ($query) {
+                        $query->where('status', 'closed')->orWhere('status', 'draft');
+                    })
+                    ->where('body', '1')
+            )
+        );
+
+        // body = 3 OR (status = closed AND body = 2)
+        $this->assertSame(
+            ['B', 'C'],
+            $this->titlesOf(
+                MockTemporalRecord::at($at)
+                    ->where('body', '3')
+                    ->orWhere(function ($query) {
+                        $query->where('status', 'closed')->where('body', '2');
+                    })
+            )
+        );
+    }
+
+    public function testTemporalRawConditionsAreRejectedInsteadOfIgnored(): void
+    {
+        $at = $this->seedForBooleanTests();
+
+        $this->expectException(\LogicException::class);
+        $this->expectExceptionMessage('not supported');
+
+        MockTemporalRecord::at($at)->whereRaw("status = 'open'")->get();
+    }
+
+    /**
+     * A open/1, B closed/2, C draft/3, D closed/1. Returns a time after all of them.
+     */
+    private function seedForBooleanTests(): string
+    {
+        $this->travelTo('2026-01-01 10:00:00.100000');
+
+        foreach ([['A', 'open', '1'], ['B', 'closed', '2'], ['C', 'draft', '3'], ['D', 'closed', '1']] as [$title, $status, $body]) {
+            MockTemporalRecord::create(['title' => $title, 'status' => $status, 'body' => $body]);
+        }
+
+        return '2026-01-01 11:00:00';
+    }
+
+    private function titlesOf($query): array
+    {
+        $titles = $query->orderBy('id')->get()->map->title->all();
+
+        return array_values($titles);
+    }
+
     private function travelTo(string $datetime): void
     {
         Carbon::setTestNow(Carbon::parse($datetime, 'UTC'));