Since you didn't provide values for in-between values, I'll assume you want
to round, or it's not an issue.

=CHOOSE(ROUND((B2-A2)*24+1,0),4,3,2,1)

You might like to change the ROUND to INT or ROUNDUP, depending on your
situation. Thankfully, both of those use the exact same arguements.
--
Best Regards,

Luke M
*Remember to click "yes" if this post helped you!*


"Graham" wrote:

I want to use the IF function for working out the time difference between two
cells eg
if planned time was A= 09:00 and actual time B=11:00
C needs to return a value of 4 if B=A ;3 if B=A+1Hr; 2 if B=A+2Hr; 1 if B
A+3Hr