Hi, For Holidays, we suggest the following:
https://docs.ca.com/en-us/ca-agile-central/saas/enter_time
Note: If you want to track vacation time and other non-project time, create a paid time off (PTO) project, create stories for vacation, sick leave, jury duty, and so on, then schedule these stories in a year-long iteration so they automatically display in the item chooser when users select the PTO project on their timesheet.
I hope that helps.
-Edwin