place this as a field in your query
minutegroup: IIf(Format([yourdatetimefield],"nn") Between 1 And 15,".
25",IIf(Format([yourdatetimefield],"nn") Between 16 And 30,".
50",IIf(Format([yourdatetimefield],"nn") Between 31 And 45,".75",".
00")))
though i think that produces incorrect results basically it is saying
if you spend 46 mins on whatever you are spending no minutes on it
it would be more prudent to do this
minutegroup: IIf(Format([yourdatetimefield],"nn") Between 1 And 15,".
25",IIf(Format([yourdatetimefield],"nn") Between 16 And 30,".
50",IIf(Format([yourdatetimefield],"nn") Between 31 And 45,".
75",IIf(Format([yourdatetimefield],"nn") Between 46 And 59,"1.0",".
00"))))
alternativally if you dont want a whole number and only a fraction it
would be even better to round down not up
minutegroup: IIf(Format([yourdatetimefield],"nn") Between 0 And 14,".
00",IIf(Format([yourdatetimefield],"nn") Between 15 And 29,".
25",IIf(Format([yourdatetimefield],"nn") Between 30 And 44,".50",".
75")))
so in that case 46 minutes woudl place you in the .75 group while 5
mins would place you in the .00 time group which is more correct data
than the first option that placed 46 mins in the .00 time group and 5
mins in the .15 group
i would choose the second option but the third option if it had to be
a fraction because the first option provides incorrect data
hope this helps
Regards
Kelvan