Question

1. When is the hospital open from?
- The hospital is open from 9:00 AM
to 7:00 PM

(Is the question correct? Do we have to add 'from' to the end?

2. When is the bank open?
2-1. When is the bank open from?
- The bank is open from 10:00 AM to 4:00 PM.
(Which question is correct?)

Answer 1

1. Omit "from." We try not to end sentences with prepositions.

2. is correct.