peteroznewman
Subscriber
Don't worry too much about the end time. Try 0.010 seconds.
Explicit Dynamics solution is very easy to restart from the last cycle and continue the solution using a new larger End Time. If 0.010 s was not long enough, you can keep going. You just have to pull down the last cycle in the Restart from Cycle field to replace the 0.
Explicit Dynamics solution is very easy to interrupt the solution to check the progress. Make sure to Interrupt and not Stop, as Stop means discard the solution! If you have waited 8 hours and it has not got to the end time, you can Interrupt and see what you have.