emqx4.3/rel/config/examples/log.console.conf.example

## Log to console

log.console {
    ## Log level
    ## Type: debug | info | notice | warning | error | critical | alert | emergency
    level = warning

    ## Log formatter, text for free text, and json for structured logging
    ## Type: text | json
    formatter = text

    ## Time offset for formatting the timestamp
    ## Type:
    ##   - system :: local system time
    ##   - utc :: UTC time
    ##   - +-[hh]:[mm]: user specified time offset, such as "-02:00" or "+00:00" Defaults to: system
    time_offset = system
}