Time zone is not a consideration for some queries but whenever a user queries with a time field, then time-zone should be considered.
Time-zone's default value can be set in
config.xml edit the field
query.default-time-zone to set the default time-zone. Time zones can be found at https://mkyong.com/java/java-display-list-of-timezone-with-gmt/
Time-zone can be set in GraphQL analytic's query also. This can be done by setting the
timeZone input field as follows.