Problem with default embargo time.

HI,

Just upgraded to version 3.02 from 2.10.19.With version 2.10.19 if I create a message at server time 21:03 then the embargo time will automatically be set to 21:00.With version 3.02 if I create a message at server time 21:03 then the embargo time will automatically be set to 22:00.This means that it may take up to an hour before the message is sent. What do I need to change so the message is immediately sent.The actual server is on mountain time and my php.ini is set to central time (date.timezone = "America/Chicago") since all of my clients are on central time. any idea.?

Please help.

I didn't find the right solution from the Internet.

References:
https://forums.phplist.com/viewtopic.php?f=35&t=39669
Infographic design animation company

Thanks!