Steps to reproduce:

1. Environment with Zabbix server + proxy + agent, all on version 6.4

Result:

How can we monitor using remote zabbix agent, system.localtime delta with zabbix server?

We see this:

Usually used with the 'system.localtime' item to check that local time is in sync with the local time of Zabbix server. Note that 'system.localtime' must be configured as a passive check.

https://www.zabbix.com/documentation/6.4/en/manual/appendix/functions/history#fuzzytime

 

Passive check works for most of our cases, but we have this very tricky one that some 150 active agents are not reachable by proxy, so we use active agent. But, our triggers (they are supported and status ok) never changed status. So we found this note in fuzzytime documentation.

 

So please clarify: system.localtime + fuzzytime in trigger expression + active agent does not work? Only works with passive check?

Expected:
Using system.localtime with active agent.