By default, analytics will run the nightly ETL data load process at 2am. This is controlled by a cron expression on the background task bean definition.
If you need to change the time at which this process is kicked off you can add the following system property then perform an application restart:
E.g. setting the value of the property spring.analyticsETLTask.cronExpression to "0 0 3 * * ?"
will instruct SBS to kick off the analytics data load process at 3am everyday.
It's typical cron syntax, just with seconds. So:
spring.analyticsETLTask.cronExpression = 0 34 23 * * ?