Try this formula
=CONCATENATE(INT(B1*24),INT((B1*24-INT(B1*24))*60),ROUND((B1*24*60-INT(B1*24*60))*60*1000,0))
Assuming that the time is in B1

"Piers 2k" wrote:

What's the 3-digit number on the end? Is this the score?