Add clarification about use of Time_format
Add clarification about use of Time_format

melexis/kibana,rashidkpc/kibana2,melexis/kibana,rashidkpc/kibana2,alphagov/Kibana,CSGOpenSource/Kibana2,alphagov/Kibana,CSGOpenSource/Kibana2,rashidkpc/kibana2,alphagov/Kibana,rashidkpc/kibana2,CSGOpenSource/Kibana2,melexis/kibana