The following links will provide you with workday functions
http://www.mvps.org/access/datetime/date0006.htm
http://www.mvps.org/access/datetime/date0012.htm
These will permit you to determine the number of business days between you 2
dates. From there you need only multiply by 8 hours (business hours or 24
hour for a full day - depends on your needs) and add that to the difference
between the start and end time of the first and last day. May take a little
fiddling but everything you need should be here.

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Hope this helps,
Daniel Pineault
http://www.cardaconsultants.com/
For Access Tips and Examples: http://www.devhut.com/index.php
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> Hi, I Have to calculate the difference in hours between dates and times
> ignoring weekends, holidays and the hours between 6 Pm till 9 Am.
> Do any one know how could I do that
Alan Zanini - 23 May 2008 12:23 GMT
Thanks but I think placed my question in the wrong place, I don't realy know
how to use this codes.
Thanks any way.
> The following links will provide you with workday functions
>
[quoted text clipped - 10 lines]
> > ignoring weekends, holidays and the hours between 6 Pm till 9 Am.
> > Do any one know how could I do that