Working with a time calculator

I know this had been done a thousand times, but I am making one that will work for me. Very simply, I am tracking time of employees in a commerical database. But, once I enter those times, i have to enter the totals into an excel sheet. So, I want to create a very simple time calculator that will add it up for me. I have the time they work (regular) and also an exception time (the exception time is a period of time that they get paid a different rate for). So, I need a total of regular time and I total of exception time. The date is a 24 hour period, so I always have to mess with time after midnight. I have it mostly working, but my totals are in time. I would like to have them in decimals, not time. Then I need to round up the total to .25 (every 15 mins).

thanks
expert-exchange.xls
bvanscoy678Asked:
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barry houdiniConnect With a Mentor Commented:
OK then for F4 you can use this version for the exact time in decimals

=MOD(D4-B4,1)*24

copy that down the column and then use this formula to sum and round

=ROUNDUP(SUM(F4:F15)*4,0)/4

regards, barry
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barry houdiniCommented:
This formula in F4 will give you time in decimal rounded to the nearest quarter hour

=ROUND(MOD(D4-B4,1)*96,0)/4

copy formula down column

on row 5 that will round to the nearest 15 minutes so it gives you 2.5 in F5, if you want to always round up you can use the same formula but replace ROUND with ROUNDUP, i.e.

regards, barry

=ROUNDUP(MOD(D4-B4,1)*96,0)/4
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bvanscoy678Author Commented:
Hi Barry,

I do need the exact time and also the rounded time.

Will part of this formual work from converting time to decimal?

example of what I am looking for.

start  07:00   End   10:12  total=
start  10:32   End   11:15  total=

then take all the totals and round up to the .25 (15 min)

thanks
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bvanscoy678Author Commented:
After rereading, I also should point out that I will only be entering 1 - 24 hour peiord at a time.  0700-0700. This will be a calculator to total one days hours, not a log of their weekly hours.

thanks
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bvanscoy678Author Commented:
Thanks Worked. Perfect.
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