I would like a cell to say the following:

"Between 7:30 AM and 8:00 AM"

User puts 8:00 AM in cell A1

B1 is then calculated to the above

If A1 = 8:00 AM

My formula works =(A1-TIME(0,30,0))

It gives me the correct subracted time of 30 minutes
But I want to convert this to a text string.