I made a supporting plugin for Amelia from a developer before, but I can not contact him now, and there is a small bug for this supporting plugin.

This supporting plugin gets zoom recording from zoom cloud after the meeting ends 30 mins, and displays under the appointment of my site (Change "Join Zoom Meeting" label to "View Recording").

The Bug is if the customer is in a different timezone from the WordPress timezone, then the "Join Zoom Meeting" label already disappeared, so means the customer can not enter the meeting at the start time of the appointment.

Here is the related code, I think.

if ($meeting !== null) {
                    $meeting_start_time = $meeting['start_time'];
            
                    try {
                        $meeting_date = new DateTime($meeting_start_time);
                        $current_date = new DateTime('now', $meeting_date->getTimezone());
                        $time_to_add  = (int) $meeting['duration'] + 30;
                        $meeting_date->add(new DateInterval('PT'.$time_to_add.'M'));
                        $interval = $current_date->diff($meeting_date);
                
                        if ($current_date < $meeting_date) {
                            // meeting didn't happen yet or its happening + 30 minutes
                            $response = [
                                'code'  => 404,
                                'error' => 'Meeting recordings didn\'t start yet'
                            ];
                            echo json_encode($response);
                        } elseif ($interval->days <= 4) {
                            // meeting did happen, check for the recording
                            $hostId             = $meeting['host_email'];
                            $meeting_date_s     = $meeting['start_time'];
                            $meetingId          = $meeting['id'];
                            $meeting_recordings = $this->getZoomMeetingCloudRecordingsByHost($hostId,
                                $meeting_date_s, $meetingId);
                    
                            $records               = [];
                            $view_recording_labels = [
                                __('View Recording', 'amelia-custom-zoom'),
                                __('View Recording 2', 'amelia-custom-zoom'),
                                __('View Recording 3', 'amelia-custom-zoom'),
                                __('View Recording 4', 'amelia-custom-zoom'),
                                __('View Recording 5', 'amelia-custom-zoom'),
                                __('View Recording 6', 'amelia-custom-zoom'),
                                __('View Recording 7', 'amelia-custom-zoom'),
                                __('View Recording 8', 'amelia-custom-zoom'),
                                __('View Recording 9', 'amelia-custom-zoom'),
                                __('View Recording 10', 'amelia-custom-zoom'),
                            ];

Thanks in advance. Anyone can help?