Good afternoon --

I'm having problems setting up a time sheet template, which requires
rounding the employee's time to the nearest quarter hour. Here's what I've
got:

A B
1 7:12 AM =MROUND(A1,0.010417)

The 0.010417 number I believe to be the decimal value for 15 minutes. At
any rate, the resulting figure in cell B1 is 7:17 AM, instead of 7:15 AM like
I want.

What am I doing wrong?

Thanks in advance.