SQL Expression - Calculate Difference Between Start And End Time

Jun 2, 2015

I'm trying to calculate the difference between start and end time, which works fine with:

Total Time: DateDiff("n",[tblTaskTimes]![StartTime],[tblTaskTimes]![EndTime])

However, this is for a database that calculates billable time in 10th of an hour. So, for example, 1 hours would be 1, 30 minutes would be .5, less than 6 minutes would be .1.

The format for this expression is set up to a general number, if that matters.

It's gotta be something in the formula like multiplying this by 24 (for 24 hours) and then dividing by something. Nothing I'm trying is working.

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Forms :: Calculate Difference Between Start And Finish Time

Jan 30, 2014

I have a subform in which I want to calculate the difference between a start time and finish time, the problem I am having is when the start time is on a different date to the finish time

Start 23:15 on 14th Jan finish 00:015 on 15th Jan, also I want the answer to be the number of minutes. The fields I have are

BatchStartTime Short Time
BatchFinishTime Short Time
BoilTime ([BatchStartTime] - [BatchFinishTime]) General Number.

There are many batches to enter per job and the MainForm has the StartDate as I didn't want to enter the StartDate for each batch.

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Calculate Time Difference

Aug 3, 2005

Hello,

I,ve made the following date fields in a form: begintime, endtime. I've also made a field Diff that calculates the difference between the two by the code : Diff = Format([begintime] - 1 - ([endtime], "Short Time").
Bij this code you can calculate the difference even over night.

But now I've got to calculate the part of the time someone worked between midnight and 06:00AM if that person indeed worked in those hours.

e.g. someone started at 16:00 end ended at 03:30. The part of time I need = 3:30
e.g. someone started at 01:00 end ended at 11:00. The part of time I need = 5

How can I accomplish this? I hope someone can help me because I'm :confused:

Thnx Remco

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Calculate Time Difference

Oct 25, 2014

I have to create a query in access that will calculate two Date and time fields [Date & Time Left]/ [Date Returned], need to figure out between the two fields. Trying to identify when the rep returned the call and the number of business hours (6:00am - 4:30pm) it takes to return a message in Ms Access 2010.

Code:
SELECT [Message Tracking_tbl].[Date & Time Left], [Message Tracking_tbl].[Date Returned], [Message Tracking_tbl].ID
FROM [Message Tracking_tbl];

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DateDiff In A Query - Calculate Time Difference Between Two Columns

Jan 22, 2012

DateDiff in a query

I am trying to calculate time difference between two time columns as follows in a query which has a few inner joins

Diff: DateDiff("h",[Table1.TimeStrat],[Table1.TimeStrat])

This gives problem, it is asking [Table1.TimeStrat] to be entered, where is the problem?

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Queries :: Calculate Difference Between Two Date Fields To Get Total Time

Oct 26, 2014

I have to create a query in access that will calculate two Date and time fields [Date & Time Left]/ [Date Returned], need to figure out between the two fields. Trying to identify when the rep returned the call and the number of business hours (6:00am - 4:30pm) it takes to return a message in Ms Access 2010.

The only issue is the calculation has to be done by time and so I have to calculate what time they left the message(so the difference between [Date & Time Left] and [Date Returned) [Date & Time Left] and when the rep returned the message which is suppose to be [Date Returned] but the problem with this field is the data entry is in date format (10/9/2014, 00/00/0000) of Date and not Date and Time like the [Date & Time Left] field, so I don't know what to do now. Not sure what to do now not a database that create or have allot of control over.

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Queries :: Calculate Time Difference And Show Result Under Certain Criteria In Query

Jul 9, 2013

ID Up Time Down Time
John 18:00 15:00
Kelvin 08:00 08:05
Melisa 23:00 02:00

This is the Table , i need the Query result show IF [Up Time]-[Down Time] is >=3 hrs

Like Below :

ID Up Time Down Time
John 18:00 15:00
Melisa 23:00 02:00

IDUp TimeDown TimeJohn18:0015:00Melisa23:0002:00

I tried DateDiff("h",[Up Time],[Down Time]) in Field but POP out with error "Syntax error (comma) in query expression 'Table1.[DateDiff("h",[Up Time],[Down Time])]' " ...

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Jul 17, 2006

How do I calculate the values between two columns and populate a third column with those new values? I have an ''Actual Cost'' column and ''Budget Cost'' column and I would like to create a third column ''Margin.''

Is this something that needs to be done with a query or can it be handeled in the design view of a table? I'm starting to learn that Access works nothing like Excel.

Thank you in advance for any help. I scanned some of the threads in this forum, but many were beyond my comprehension. Any walk-through of this procedure would be much appreciated.

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Forms :: Calculate Difference Between Records

Jul 25, 2014

I have looked all over for a way to calculate the difference between water meeter readings. My brain may be Friday slow, but all I can find is for calculating differences in dates. My water table has 3 fields: ReadDate, Reading, Calc1

ReadDate is the date the water reading occurred
Reading is the meter reading
Calc1 is calculated (when I find out how!) by subtracting the current reading from the previous day's reading.

I would like to add the write script in my form so when the readings are entered, the calculation auto populates the field for the user.

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Apr 10, 2015

so i created a system to have events booked, and i am trying to check time availability of the event room available, but i dont know what wrong. it either my query or vba code. i have attached the attachment,

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Nov 1, 2007

I'm new to building databases and I wouldn't think that this is difficult but it has stumped me and everyone that I have approached to elegantly perform this calculation.

Essentially I have a table of meters (the best real world example is the watermeter that your community uses to measure how much water you use each month.) Each meter in the table has a "child table" of the date/time that the meter was read and the reading on the meter (stored as a number). I need to calculate the difference between the last two readings in the child table for each meter(essentially how much water each meter has used since the last reading.)

I have been able to sum, average, etc. the meter readings, but I can't seem to find a way to get a difference.

Thanks in advance,

Corwin

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Queries :: Database Which Calculate Difference Between Dates

Sep 14, 2014

I have the attached database which calculate the Difference between dates.I have also two problems like i shown in the image

Code:
Option Compare Database
Option Explicit
Sub Recalculate()
Dim rst As DAO.Recordset
Dim dff As Long

[code]...

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Apr 25, 2014

I am trying to Calculate the Date difference between "Material Submit Data" and "Current Date" excluding Weekends.

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Sep 20, 2014

Trying to calculate the integer difference between Due_Date and Result_Date excluding weekends and holidays.

I have a table (Holidays) with the dates of the holidays in it. The table looks like:

ID Description Holiday
1 New Years 1/1/2014
2 New Years 1/1/2015

So, if Date_Due: 9/25/2014 and Result_Date: 9/29/2014, then TAT = 2

Since 9/27/2014 and 9/28/2014 are weekends they are excluded from the calculation and only that Thursday and Friday are used in the calculation.

Code:
Private Sub Result_Date_AfterUpdate()
[TAT] = NETWORKDAYS(Due_Date, Result_Date, tblHolidays)
End Sub

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Nov 21, 2013

How to implement a functionality into my access database. The related tables required for this functionality can be found as an attachment.

When the information has been entered into the tables by the user, I would like to calculate the difference between the information for each part within the same table. The main columns for which the difference have to be calculated are: [RefObsInfo->RefSources] and [AltObsInfo->StatusAltSource] and [GenObsInfo->GenSources]. The values for these fields are restricted to 3 or 4 different ones. I also would like to show if the GenEstAvailable columns are changed, but that's for later.

In order to calculate this difference a query has to select for each Part the information related to the last date AND a date which has been specified by the user (with the previous date as max). For this the user is asked to give a from date, which she/he can select from a combobox. This combobox has a standard selected value which is the MaxDate-1, i.e. the previous date. The difference should be calculated from the previous date to the last date. I would prefer to give each (predefined) difference a specific action to show the user the difference in a matter of seconds.

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Sep 20, 2014

Basically, I am trying to calculate a integer number difference from two dates (TAT = Due-Date - Result_Date). The number is calculated and excludes weekends and ideally holidays (for that I have a tblHoliday but not sure how to use it). The function below seems to calculate a number but doesn't exclude weekends.

For example, if Due_Date is 9/26/2014 and Result_Date is 9/30/2014, then TAT is calculated to be 5 (should be 2).Since 9/26/2014 is a Friday only Friday and Monday are used in the calculation.

Code:

Option Compare Database
Public Function WorkingDays(StartDate As Date, EndDate As Date) As Long
Dim intCount As Long
intCount = 0

[code]...

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Nov 27, 2014

I am struggling with calculate difference between two query table values, I first created a make a table query(current meter reading) which contains one column called "meter read" , and I created a second make a table query(previous meter reading) which also contains "meter read" column, I linked those two make table queries to calculate the value difference between two date, how can I create a form to calculate diff between any two date?

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Jun 8, 2015

How can I calculate the difference between two dates but I only want to count the work days? So if was today and I wanted to go until 6/15/2015 the difference would be 5 and not 7 because I do not want to count Saturday or Sunday. Is there a special %datediff function where I would only count work days?

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Apr 22, 2013

I am trying to calculate the difference in dates between two fields. How do I find the difference in days between field one which contains the date 04/12/2011 and field two which contains the date 04/12/2013? I have tried to use the datediff function, but it keeps telling me it doesn't recognize the field name, even though the spellings correct.

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Oct 8, 2015

I'm trying to add a calculated field which will be the time difference between two other date/time fields.

When I try to make a Calculated Field it does not recognize the DateDiff command.

Is there a preferred method to create a calculated field based on date/time differences? One would think this would be an easy thing to do.

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Queries :: Start Time - End Time Query

Nov 3, 2014

I have finger print machine and i already connect to it and get all log.then i tray to get data and here is the code that im using

SELECT Format(CHECKINOUT.CHECKTIME,"dd/mm/yyyy") AS CDate, IIf([CHECKINOUT.CHECKTYPE]=I,Format(CHECKINOUT.CHECKTIME,"hh:nn:ss ampm")) AS StartTime, Format(CHECKINOUT.CHECKTIME,"hh:nn:ss ampm") AS EndTime, USERINFO.USERID, USERINFO.Name, CHECKINOUT.CHECKTYPE
FROM CHECKINOUT INNER JOIN USERINFO ON CHECKINOUT.USERID=USERINFO.USERID
WHERE (((Format([CHECKINOUT].[CHECKTIME],"dd/mm/yyyy"))='10/04/2014'));

how i get end time due to CHECKTYPE]=O

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Queries :: Expression To Show Years And Month Difference Between 2 Dates?

May 6, 2014

I am wanting to get an expression that will return the difference in years and months between 2 dates. Specifically, I want to know peoples ages in years and months based on a person's D.O.B and todays date. I have managed to do it in years:

Expr1: DateDiff("yyyy",[TBL_EmployeeDetails]![D_O_B],Date())

and in months but I would like to know how to return the difference in years and months.

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Jan 30, 2006

This has probably been raised before but here goes anyway.

I have two fields in a table: time_in and time_out, both as date/time fields and formatted for short time with a mask in the form.

I need to calculate the time spent, i.e. time_in 10.00, time_out 12.15 therefore 2hours 15minutes.

any help much appreciated.

Jim

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Time Difference Calculation

Mar 8, 2006

Hello:

I have a report with three text boxes:

Box 1 contains an employee's total weekly hours in hours and minutes: 40:00
Box 2 contains the actual total hours worked for the week: 35:30
Box 3 is the difference between Box 1 minus Box 2

I tried all the date/time functions to calculate the difference between Box 1 and Box 2 and none of them worked. I keep on getting an error message. Does anybody know how to calculate the difference between two sets of time (in hours and minutes)?

Thank you in advance.

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Jan 12, 2007

I have four fields

Date Sent (date) Time Sent (Time) Date Recvd (date) Time Rcvd (time)

I want to know how many hours have elapsed between date and time sent and date and time rcvd


Any Ideas please as I am having a blonde moment

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Time Difference Help Needed!

May 25, 2005

Hi all,

I've just started a new job and one of the things they have got me doing involves getting some extra reports out of some access databases they have for the phone system. I've managed OK so far but I'm stuck on regarding phone diverts.

Basic jist is, when reception is unmanned they put the phone on divert and when they come back they take it off again. Simple and this info is recorded in the log file which is pulled into access each night.

The problem is all of the information is kept in a single table which I run a query on to get the info to look like below. The info is exactly as it is in the table, just that I have limited it to the reception user and where the func is like *54* or *55*:-

DateTimeUserFunc
03/05/200511:40:00Reception*54*200#
03/05/200511:47:00Reception*55*200#
04/05/200511:35:00Reception*55*200#
04/05/200511:40:00Reception*54*200#
04/05/200511:59:00Reception*55*200#
05/05/200509:57:00Reception*54*200#
05/05/200510:08:00Reception*55*200#
05/05/200512:10:00Reception*54*200#
05/05/200512:17:00Reception*55*200#
05/05/200512:19:00Reception*55*200#

The FUNC *54* means put on divert and *55* is off divert. What I need to figure out is the time between each of *54* and *55* and total them for all the data in the table (we have a table for each month). The problem I can see here is that occasionally the receptionist will put in the *55* first which doesn't mean anything so this bit would need to be ignored as only bits where its a *54* followed by a *55*.

Hope this is self explaintory and that someone is able to help. I have attached a CSV fle on the table so you can have a play with it if you can help.

Thanks in advance!

Regards,

Andy Roberts

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