Upvote:4
Is this really the case?
Yes, when you are staying somewhere where the registration is not done for you by the accommodation (i.e. private residence)
A list of the Foreign Police Departments can be found here:
If it is the case, where can I register in Prague,
OlΕ‘anskΓ‘ 2176/2
130 51 Prague 3
- tel.:974 889 102
- Position Google Maps, Zoom 14
For the opening hours, see original page.
and how long should I allow for this process?
No idea.
Filling out, the very simple, registration form beforehand may speed up the process.