[AccessD] A2K: This should be easy

Drew Wutka DWUTKA at marlow.com
Mon Mar 17 01:01:00 CST 2003


I know people are going to post about the DateDiff function.  But I'd like
to get you thinking about what you are actually trying to do.

Dates and Times are stored as numbers.  The date is the whole number, which
represents the number of days since 12-30-1899.  Thus, since days are whole
numbers, you can add or subtract days by simple math.  (ie, to get tomorrow,
it's Date()+1).  Times are the fraction of the day.  ie, .5 is noon, and .0
is midnight.  Thus, you can also just simply add or subtract values to
change the time.  (ie, to get an hour from now, use Now()+(1/24)).

Does that make sense?  Also, another little known fact about the Date, Time
and Now functions.  They work both ways.  If you use this line of code:

Date=Date()+1

You've just set your systems date to tomorrow!  <grin>

Drew

-----Original Message-----
From: Darren Dick [mailto:d.dick at uws.edu.au]
Sent: Sunday, March 16, 2003 8:46 PM
To: Access Mail Group
Subject: [AccessD] A2K: This should be easy


Hello all
This should be simple.

I have a control on a form (txtStartTime). Formatted for Short time (i.e.
hh:mm)
I want to take say...5, 10 or 15 minutes from whatever time is in
txtStartTime

So take away 15 from 11:00 should give me 10:45

How do I do this.

<Sigh> this should be easy. It probably is, I'm just brain fading.

Darren

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