I can only see one 'days' in 'two days'. Not really much Maths there.
If you want to look at this problem the other way...there are only two (approximately 24-hour) days in the span of two days, assuming that you stay in the same time zone for the 48-hour period.
2880 minutes in two days
Two nights, two days
7,300 days.
14 days
it is two days.
There are two sets of two weeks in 31 days.
2/7 of a week would be two days since a week is seven days, two 'parts' of a week would be two days.
two days!
2 days
91 days.
A week is 7 days, Ten weeks is 70 days, now add the two days and get 72 days
In 810 days there are two years and eighty days.