Logging time w/o user account

Logging time w/o user account

Hello all,
We have different 3rd party technicians and consultants working on our projects and I would like to log hours for them without having to create accounts.
The fluctuation is quite high and creating individual accounts doesn't make sense at all...
What can I do?
This is essential for me and If not possible I might need to go back to teamwork peojects.

If at least it would be possible to create an account without the need to confirm the email address then I could create dummy accounts.

Please let me know!
Thanks
Vin