The Gantt Time Scale View uses the normal calendar year in terms of Quarters. (Q1 starts in January, etc)
Can I configure the Gantt Time Scale View to use our Fiscal Year calendar which does not start in January?
All supported Clarity PPM versions
Currently we are unable to change the Time Scale View in Gantt other than what is available under the Configure options.
You can change the start date however Q1 will always start in January.