What problem are you trying to solve with Submitty
When looking through PR #10905, I found only one usage of the python-dateutil package, so we may be able to remove this dependency. The usage of this package seems to fall under the purpose of the submitty dateutils file, as it parses a string to a python datetime object.

Describe the way you'd like to solve this problem
The solution that first comes to mind is replacing the python-dateutil parser with a new parser which would be stored in the Submitty dateutils file. It's possible that the string manipulation is too complicated to be worth it, so another solution might be to change the way queue times are gathered so that they work with the other Submitty parsers.

Additional context

(Doesn't fit the Submitty date parser)