I am back at this.
I am seating in CST time zone. most all my source are in CST time zone
but all my date field is saved in Elasticsearch as GMT time zone.
and my kibana (default setup as ) browser timezone is converting that GMT back to CST
why can't I save all my data at CST timezone and kibana takes it as is?
problem I am not having is when I run sql query it give me data on different time format. it is getting confusing.