Question 1. If you are aboard a sailboat based in the BVI with USCG Documentation and clear out of the BVI, how much time do you have before you have to leave BVI waters? Hours? Days?

Questiin 2: Can you clear out of BVI and clear in BVI for arrival at a later date at the same time?

I've read the clearing procedure in many places but have not come across an answer to these questions.

To be clear this is what I plan to do:

Sunday Board boat in Road Town
Sail within BVI waters for several days
Friday sail to St John USVI
Sunday sail to BVI

I know I need to check out of BVI, Check in USVI, check in BVI. I'm just trying to 1. Check out of BVI when its convenient 2 minimize time in BVI Ports Autority

Thanks

Tony