You can reload the Time Dimension Tables After Oracle Business Analytics Warehouse is loaded.
The default value for the last date in time dimension is Dec 31, 2020. If you need to extend this date, you must use Oracle BI Applications Configuration Manager to change the default value of the variable END_DATE to a larger value (no greater than Dec 31, 2050, which is the upper limit). The time dimension tables will be extended automatically in the next incremental load.
You will see a Subject Area named Common Dimension and Extend Day Dimension. If you have Multiple calendar in your Day Dimension, then choose the configuration tag Extend Day Dimension Multiple Calendar Support, or else remove it. Then assemble the Subject Area.