4 days journey with Airport Express Travel Pass

Hello I will arrive via plane at 15.00 on the 27th and need to be in Airport on the evening of the 30th.

Can I use AE at 16.00 and MTR at 17.00 on the 27th, till MTR at 20.00 and AE at 21.00 on the 30th with the same pass?

Website says that the 3 days starts from the recorded entry time of the first MTR train journey and lasts for 72 hours plus any additional hours up to the end of train service on the last day.