src/Controller/DumpController.php

@@ -54,10 +54,14 @@ class DumpController
     }
 
     /**
-     * The datepicker emits ISO-8601 UTC strings (e.g. "2026-03-01T00:00:00.000Z")
-     * in date mode. An empty bound (no date set) stays null so the range is open
-     * on that side. The "to" side is widened to end-of-day so selecting a date
-     * includes every dump created that day, not just before midnight.
+     * The admin's date filter sends mixed shapes: the "from" bound is a naive local
+     * date string with no timezone marker (e.g. "2026-03-01T00:00:00"), while
+     * sw-date-filter widens "to" to end-of-day client-side via `Date#toISOString()`,
+     * which is always UTC (e.g. "2026-03-01T23:59:59.000Z"). Re-expressing both in
+     * PHP's default timezone (the same one DumpFilenameParser uses) before applying
+     * our own day-boundary keeps the calendar day the user actually picked, regardless
+     * of which shape arrived. An empty bound (no date set) stays null so the range is
+     * open on that side.
      */
     private function parseBoundDate(?string $value, bool $endOfDay): ?\DateTimeImmutable
     {
@@ -66,7 +70,7 @@ class DumpController
         }
 
         try {
-            $dateTime = new \DateTimeImmutable($value);
+            $dateTime = (new \DateTimeImmutable($value))->setTimezone(new \DateTimeZone(date_default_timezone_get()));
         } catch (\Exception) {
             return null;
         }