Life happens and you are of course allowed time off to deal with an emergency involving a dependant. A dependant meaning a spouse, partner, child, grandchild, parent, or someone who would depends on you for care.
This is offered as paid leave because we know how stressful it can be for you. It is at the discretion of Mojo. So, have an open conversation with your manager to work out what is appropriate. Give your manager as much notice as possible.