Live Migration - Extend Time maximum?

I am currently doing some test Live Migration Pulls getting some metrics and timings for our Prod migration.
When the Initial Sync Complete! occurs I see the 120 hour cutover timer. I also see the Extend Time link, which can add another 24 hours. I clicked a few times and see it adding more time.

What is the max number of extends times you can do? or max hours?

120hrs/5 days should be more than enough, but I just want to make note of what the max is for Extending time, should we need to resolve anything during validation.

Our data size that we are migrating is ~ 6TB


I don’t think we enforce the overall max yet