Since Links Hierarchy provides you with “Time in Status” statistic sinsce version 7.2.0 you can see the 'Time in Status' of an issue.
...
where you You can see:
by Status*: how long the issue has been in each state.
by Transition*: how long the issue has been in the state of origin of the transition.
by Assignee*: how long has each user been assigned in each state.
(*All times are displayed on the 24/7 calendar)
How to open 'Time in Status' of an issue?
Just “click” on the status in any of the app's functionalities (Hierarchy Tree View, Dependency Table, Matrix, app gadgets...):
Hierarchy Tree view:
...
Dependency Table:
...