concatenate time from 3 columns

[Guest]

Hello So I have a report I imported and time is in 3 columns like this
10:00 - 10:30AM
THe first and the third column are formated as time.
what I need is the time to be in one column to look like this 10:00-10:30AM
I tried to concatenate the 3 columns but then I loose the time format, I
also tried
= column a+column b+ column c and I get #Value. How can I do this? thanks

 

[Guest]

=TEXT(A1,"hh:mm") & "-" & TEXT(C1,"hh:mm AM/PM")

 

[Don Guillett]

=TEXT(I12,"hh:mm")&"-"&TEXT(K12,"hh:mm am/pm")

 

[Guest]

Thank you - perfect....