Critical Bug: Infinite Loop in em-datetimezone.php Causing Constant Timeouts

Hi

I’m experiencing a critical issue with Events Manager/Events Manager Pro that’s making my site essentially unusable. The site is experiencing constant PHP fatal errors due to maximum execution time being exceeded. 

Problem Summary: – Continuous timeout errors occurring every 1-5 minutes throughout the day – 80-90% of errors originate from em-datetimezone.php (primarily lines 30, 12, 13, and 40) – The pattern strongly suggests an infinite loop or extremely inefficient timezone/datetime processing Error Pattern: The vast majority of errors occur in: – /wp-content/plugins/events-manager/classes/em-datetimezone.php(line 30 is by far the most common) – /wp-content/plugins/events-manager/classes/em-event.php (lines 782, 2110, 2112, 2113) – /wp-content/plugins/events-manager/classes/em-datetime.php(lines 35, 40, 48, 49, 63) – /wp-content/plugins/events-manager-pro/add-ons/toolbox/past-events/past-events.php (lines 36, 58) Environment: – WordPress: 6.9.1 – Events Manager: 7.2.3.1 – Events Manager Pro: 3.7.2.3

– PHP: 7.4 – Server: Standard shared hosting with 30-second max_execution_time Sample Error Log Excerpt: [11-Feb-2026 00:03:07 UTC] PHP Fatal error: Maximum execution time of 30 seconds exceeded in /wp-content/plugins/events-manager/classes/em-datetimezone.php on line 12 [11-Feb-2026 00:22:46 UTC] PHP Fatal error: Maximum execution time of 30 seconds exceeded in /wp-content/plugins/events-manager/classes/em-datetimezone.php on line 30 [11-Feb-2026 00:24:31 UTC] PHP Fatal error: Maximum execution time of 30 seconds exceeded in /wp-content/plugins/events-manager/classes/em-event.php on line 627 (This pattern repeats hundreds of times per day) 

Possible Triggers: This issue started [recently/after an update/after migration]. I suspect it may be related to: – Corrupt datetime/timezone data in the database – A recent plugin update introducing a regression – Large number of historical events causing processing issues – The “Past Events” add-on in Events Manager Pro Questions: 1. Is this a known issue in the current version? 2. Are there any database queries I can run to identify and fix corrupt event datetime data? 3. Is there a temporary workaround while waiting for a fix? 4. Would disabling the

“Past Events” toolbox add-on help? 5. Should I consider rolling back to a previous version, and if so, which version would you recommend? What I’ve Tried: – Set max_execution_time to 120, eventhougth not a solution. – Reviewed error logs – consistent pattern pointing to em-datetimezone.php This issue is severely impacting site functionality as the timeouts affect both frontend and backend operations. Any guidance on immediate steps I can take would be greatly appreciated while you investigate the root cause. Thank you for your assistance! Best regards, Oskar Berntorp