Daily scheduled tasks do not work - https://www.youtube.com/watch?v=81EE5M7r3DM

the video doesn't make any sense.
you schedule a "run now" task at it shows "run once at 2020-02-14 20:07", then you show your local clock which is 15th feb 07:07.
Your server's host clock or timezone is off. You need to fix this first.,
All time and date info is sensitive to the server's clock and timezone, not your local windows clock.

Web server time zone?

no it's the gameserver/database time & timezone

I've added a check time button to the latest patch, so you could get the current server time. I hope it helps to troubleshoot the issue.

I solved the problem by assigning to use the system time in the MYSQL server. In the database of the game server, I did not find such a setting))

To use the system time, in MySQL you need to execute a query

SET GLOBAL time_zone = 'SYSTEM';
SET time_zone = 'SYSTEM';

Great, thanks for the info!
Luckily, according to MariaDB docs, SYSTEM is the default for the time_zone setting.