This posting is to report a bug.
I receive an Invalid Certificate dialog box on Maxthon 5.2.4.3000 when trying to view some websites. My system time and date are correct.
I use Maxthon v5.2.4.3000 on Windows XP Professional with Service Pack 3.
Three example websites are:
https://vivaldi.net/
https://easylist.to/
https://www.cloudflare.com/
The issue may be reproduced by visiting one of the example websites for the first time during the browsing session.