They have plenty vacation time and there are no restrictions to use it. However, sometime it is very depend on the character of PI.
It depends on the lab you choose. My lab was very flexible. I did my work and took whatever time I needed.
you get 3 weeks of vacations and 3 weeks of paid sick leave
Good amount of vacation and PTO offered. 2 wks vacation was accrued throughout the year, along with 2 personal days and 180hrs of sick time. No problem scheduling vacations/making sure there was coverage when I was gone.
You earn 6 hours a pay periods to start
Depending on labs, but at least 3 weeks of vacation with payment / year
There should be more vacation days for employees.
As graduate students fill the void between student and employee, there is no official paid time off. It is an ad hoc negotiation with the PI.