Greetings,
I am trying to create a duration field in a query. I have a field with
a start time and a field with an end time. They are both in military
time, and are formatted as hours:minutes. I am trying to create a
duration field by subtracting the start time from the end time. This
is working.
However, some end times do not happen until the following day, and
this is screwing up the results. If the start time is 04:30 and the
end time is 04:40, the duration field is successfully populated with
"10" minutes. However, if the start time is 23:30 and the end time is
01:30 (the next day), instead of getting "120" in the field, I get a
"-1,320" (60 minutes x -22 hours). Is there some way to make Access
interpret the end time as always being after the start time so it will
know in these instances the end time is for the next day? Or do I have
to include the date in these time fields so Access knows to look at
the next day?
Thanks in advance to anyone who can help!
Dave
1  2236 
How are you getting the duration value?
If you use the DateDiff function, you can get the number of seconds
between two Date-Time values.
DateDiff("s",#1 2/10/2003 11:55:50 PM#,#12/11/2003 1:03:50 AM#) = 4080
--
Danny J. Lesandrini dl*********@hot mail.com http://amazecreations.com
"Dave" <dh***@mmua.org > wrote in message news:ee******** *************** ***@posting.goo gle.com... Greetings,
I am trying to create a duration field in a query. I have a field with
a start time and a field with an end time. They are both in military
time, and are formatted as hours:minutes. I am trying to create a
duration field by subtracting the start time from the end time. This
is working.
However, some end times do not happen until the following day, and
this is screwing up the results. If the start time is 04:30 and the
end time is 04:40, the duration field is successfully populated with
"10" minutes. However, if the start time is 23:30 and the end time is
01:30 (the next day), instead of getting "120" in the field, I get a
"-1,320" (60 minutes x -22 hours). Is there some way to make Access
interpret the end time as always being after the start time so it will
know in these instances the end time is for the next day? Or do I have
to include the date in these time fields so Access knows to look at
the next day?
Thanks in advance to anyone who can help!
Dave This thread has been closed and replies have been disabled. Please start a new discussion. Similar topics | |
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