Zabbix agent passive checks items have update interval and custom intervals fields which allows to specify exact check execution time.
When changing item type to Zabbix agent (active) only Update interval field is available.
I need some checks to be executed at specified hour 11:00, 12:00, and so on. Specifying update interval to 1h will execute check every hour, but this may be 11:31, 12:31 and so on.
Is there way to force active checks to run at specified moment?
Not possible currently, you might want to vote on the feature request.