How to convert minutes to decimal

If you need to round off to 2 decimals and to pad with 0s, that is, 10.50 instead of 10.5, then adapt Carl's solution to

<cfset MyDecimalTime = numberFormat(ListFirst(MyTime, ":") + (ListLast(MyTime, ":") / 60), "00.00")>

How do I do this?

The simple answer: with math.

Longer answer: parse it using list functions and then do some math.  Like this:

<cfset MyTime = "43:15">
<cfset hours = ListFirst(MyTime, ":") > <!--- get the hours part --->
<cfset minutes = ListLast(MyTime, ":") > <!--- get the minutes part --->
<cfset decimalMinutes = minutes / 60 > <!--- Calculate minutes as decimal of an hour --->
<cfset MyDecimalTime = hours + decimalMinutes > <!--- Put it all back together as decimal hours --->

Or, in more terse form:

<cfset MyTime = "43:15">
<cfset MyDecimalTime = ListFirst(MyTime, ":") + (ListLast(MyTime, ":") / 60) >

HTH,

-Carl V.