Thanks Biff,

I've just workes it out :-)

I used

=ROUND(A1/"00:00:30",0)*"00:00:30"

Alex

"Biff" wrote:

Hi!

Try this:

=ROUND((A1*86400)/30,0)*30/86400

Format as [hh]:mm:ss

Biff

"Alex" wrote in message
...
is it possible??
e.g.
i have a list of times

01:05:28 round to 01:05:30
01:05:45 round to 01:06:00