# Calculating Data Within Past 24 Hour Time Period

Jun 7, 2014
I am a flight instructor and legally we cannot work more than 8 hours in any consecutive 24 hour period. I'm trying to create a spreadsheet that will calculate the totals from that 24 hour period for me.

Right now I have something that sort of works, but not the way I would like it. I have a column for "time" that has the date and ending time of the flight and I am using that as if the total flight occurred at one moment (the ending time).

So, for instance let's say I did these flights

1: 8AM-10AM (2 hours, clocked at 10AM)

2: 11AM - 2 PM (2 hours, clocked at 2PM)

3: 7AM-9AM the following day (2 hours, clocked at 9AM)

If I have my formula calculate the time for 9AM the following day (totaling the past 24 hours) the first flight won't be included in the calculation since the hours from that flight is only imputed at 10AM. The formula would read 4 hours rather than the (actual) 5 hours.

Here is my workbook : 8 hour calculator sample.xlsx

Here are the formulas I am using

The time is formulated at date and time, with time being the ending flight time

The start time for the calculation is

[Code]....

end time is just =NOW()

Total calculation is

[Code] .....

All I'm trying to do is use the totals under "flight start" and "flight end" instead of the end flight time I had to put in under the date column.

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Nov 6, 2007

Calculate certain time increments for various work-shifts. I have a start time,finish time and increments of time across the spectrum of 24 hours. There are also multiple start time across the 24 hour period with some start times begining on one day and ending on the next day.

Example

In B5 Startime is 22:00

In C5 Finishtime is 06:30

In I3 increment begins at 00:00

In I4 increment ends at 00:30

The employee working the shift from 22:00 - 06:30 would fall into the time increment of 00:00 - 00:30 where another employee working a different shift (08:30 - 17:00) would not. I'm looking for a formula that would return a 1 in a cell if the employee fell into the 00:00 - 00:30 time increment and a 0 in a cell in the employee did not fall into the time increment.

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Jul 16, 2012

I've calculated the time of hours worked by staff using th 24 hour clock - "hh:mm" format.

When summing up the hours, it goes a bit haywire, i.e.

Staff A = 12:30

Staff B = 14:00

Sum = 02:30

Total should equal 26:30 (26 and a half hours), however I get returned 02:30. I assume it is down to the 24 hour clock and I so I tried adding 24 to it in the formula bar to get the right answer and it didn't work.

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Mar 13, 2008

I'm attempting to chart 3 series over a 24 hour period (8am-8am). The 3 series are captured in 1 minute intervals. My X axis intervals is displayed hourly though. My issue is, charting goes bad at 00:00:00. i.e. it stops.

Here are the values I have on my X axis

min: .33333

max: 1.35

maj: .04167

min: .00347

cross at: .33333

Any ideas how I can get from 8am to 8am?

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Jul 10, 2014

I want to return a value based on once off time related data which is captured at 4 time periods throughout a day. I have another set of data which does not line up with this data but I want it to return the value closest earliest value.

Given this data:

27-6-14 3:00 12

27-6-14 7:00 18

27-6-14 11:00 19

If I have a time like 27-6-14 5:00 I want to return a value of 12 (Previous time). How would this be possible?

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Sep 4, 2006

I have created a daily schedule which has a number of factory variables taken into consideration which determine the date and time a particular product should, barring any mechanical problems, come off the machine. (see attached spreadsheet).

The date at the top will be editable by me only so that when I update the production quantities, the “date/time off” column automatically re-adjusts to the remaining quantities.

The formulas are a little long winded, but I have left them that way whilst I try and develop it. I should be able to figure out how to condense them later.

My problem is that the “date/time off” on the right works excellent, but over a 24 hr period.

Ordinarily, we work a 12 hour day (6am to 6pm) with overlapping shifts to cover breaks, and 20 mins warm up at the start of the day for the machine, thus maximising a 12 hour day.

Of course if demand exceeds the allotted time we put on overtime.

Is it possible to specify that normal days are only 12 hours so that if a product exceeds 6pm, it flows into the next day with the balance starting at 6:20am?

And, if the production for the week exceeds the time could I stipulate particular days which we deem are suitable for overtime? Ie, we decide Wednesday is a 14 hour day and not 12.

I had toyed with the idea of creating a 365 day table/calendar, on another worksheet which would have its individual allocated hours in an adjacent column and somehow link them to the date/time off, perhaps by way of a VLOOKUP, but I have been chasing my tail trying to figure out how to implement it.

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Mar 5, 2014

I am working on a set of data that has a two week time period and specific times of events throughout each day. The dates and times are in separate columns and the time is in 24 hour format HH:MM. I am trying to count the number of occurrences in tenths of the hour or six minute increments, so 1-6 would equal .1 - 7-12 would equal .2 and so on - I really would remove the decimal and just express the value as 1-10. I am then just trying to do a count of the number of occurences for each hour and each day to see where the occurences are grouping. I will then graph this result to see where the clusters occur

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Mar 7, 2008

I'd like to convert from 24 hour standard time to 12 hour time using VBA code. For example: instead of 13:00 I need 1:00.

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May 8, 2008

I have a list of FLIGHT departure times that are listed in MIL TIME, however, there is no : in the format. Its just 4 or 3 digit numbers. I need to convert these to time in 12-hour clock. If I go to FORMAT/CELL/TIME and select 1:30pm it simply makes the time ZERO!

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Jul 22, 2009

I have two dates in this format:

start: 17.07.2009 11:00:00

end: 17.07.2009 14:00:00

i need to check if the period in between those is during a workday.

our workday starts at 10:00:00 and finishes at 19:00:00

so my expected result is 3 hours. (1400-1100)

other example:

start: 17.07.2009 11:00:00

end: 18.07.2009 11:00:00

result is 1900-1100 + 1100-1000

= 9 hours

because it is during two workdays...

is there a way to calculate this in VBA?

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Jul 30, 2009

I need to calculate the number of calls my operators take per hour of the day in order to calculate the busiest times of the day. Each call is time stamped and captured but now how do I calculate the total number of calls taken between 07:00:00 and 07:59:59 etc etc for the whole 24 hour period?

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Jan 1, 1970

It should be deplaying dates of weekly days in Monday, Wednesday and Friday excluding sundays. Or Tuesday, Thursday Saturday excluding Sunday. e.g

Mondays, Wednesdays and Fridays of June

June 1, 2006

June 3, 2006

June 6, 2006

Tuesdays, Thursdays and Saturdays of June

June 2, 2006

June 5, 2006

June 7, 2006

This should be happening after entering any date on the first cell of the List and should accommodate up to 3 months

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Mar 27, 2013

It is currently 11.40 AM. When I evaluate

Code:

?Now() > TimeSerial(11,30,0)

I get True.

However, when I evaluate

Code:

?Now() < TimeSerial(11,50,0)

I get False.

Why is this?

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May 23, 2008

I have a protected worksheet. Users wish to be able to track changes in the input cells. The suggested approach for this is to temporarily disable sheet protection and allow them to change the font color, then protect afterwards. What I would like to do is:

i) check whether they are in an input cell

ii) if so, then prompt the user with the 'Font Color' dialog box

iii) apply the font color selected to the input cell

I'm struggling to find the dialog box I need. I can launch the one to change the interior color, no problem (Application.Dialogs(xlDialogPatterns).Show). But that's no use to me, I just want a color palette that specifically relates to the Font Color

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Nov 18, 2008

I have thousands of timestamps that have a start & end date and time in 2 separate columns. (one named start and one named end...)

I also have numerous set time periods that i'm interested in.. (about a dozen or so)

for example 01/01/2008 - 05/01/2008, 07:30:00 - 10:00:00

What i need is to be able to count the number of times the full time period i am interested (07:30:00 - 10:00:00) in falls in between the thousands of start and end timestamps i have. The time periods must also fall within the date range specifed.

So if my timestamps were

Start: 01/01/2008 06:30:00 & End: 02/01/2008 11:00:00, based on the set time period above, there would be a count of 2

and if my timestamps were

Start: 01/01/2008 07:05:00 & End: 02/01/2008 09:00:00 there would be a count of zero as there is not a full uninterupted timeperiod 07:00:00 - 10:00:00 between these timestamps.

and if my timestamps were:

Start 01/01/2007 07:00:00 & End 02/01/2007 10:00:00 the count would be zer as this is a year early!

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Mar 23, 2013

I need creating a formula that will tell me the total number of employee hours worked during a certain hour (6:00 AM) for a particular department. Some employees clock in at 6:00 AM, some clock in at 6:30. Here is the current formula I'm using which only tells me the amount of employees in the department not how many hours worked . I have three employees that clock in at 6:00AM and one at 6:30AM, the total I'm looking for is 3.5 but my formula gives me the result of 4.

C5:C1446 is a list of departments

T1503 is the 6:00 AM

D5:D1446 are the Clock In times

K5:K1446 are the Clock Out Times

=SUMPRODUCT(--($C$5:$C$1446="Shipping"),($T$1503>=$D$5:$D$1446)*($T$1503

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Apr 27, 2014

Formula to calculate time allotted minus time used and show the difference in hour and minute.

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Sep 11, 2013

In A1 I have 35 min elapsed time and need to change it to time as a portion of an hour. It reads the 35 min as TIME, therefore I am currently using

=IF(A1>=0.5,A1-0.5,A1)*24. Output is .58, which is perfect.

(output column formatted as a number)

Likewise 3:28 becomes 3.47.

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Dec 20, 2007

I need a formula to calculate the time (in hours/fractions of an hour) that is "covered" for each hour of the day between a range of times. In other words, I have a "START TIME" and an "END TIME" and for each hour of the 24-hour clock, I want to know how much time this range covers.

For example, if my start time is 3:30am and my end time is 5:15am, for the 3am hour, the formula would return 0.5 hours, for the 4am hour it would return 1.0 hours, for the 5am hour it would return 0.25 hours, and for all other hours it would return 0.0 hours. The range of START TIME and END TIME can be up to 24 hours (but not more), but the tricky part is that the START TIME can be on the day BEFORE the END TIME (e.g., START TIME of 10:35pm and END TIME of 5:45pm the next day).

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Mar 13, 2008

I found a formula for calculating time in the HH:MM AM/PM

=IF(B1<A1,B1+1,B1)-A1

This formula was to give me total hours in the cell for which it is entered, and cell format for the formula was in military format.

I cannot find this post. The formula worked in OpenOffice Calc program, but when it came to converting to excel, I came up with #value!

I want to enter the time in 12 hour format and using am/pm to designate. I am making it for someone to make work schedules with and they do not know military time.

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Dec 11, 2007

I'm trying to calculate the total time past an arbitrary time. If my start time is 17:00 and end time is 21:00 and I select a 19:00 as sunset time, How do I calculate the time past 19:00.

the formula I been using, a2-a1, but that calculates the total time between 17:00 -21:00.

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Apr 2, 2009

I have a start time in cell A1 (say 9am entered as 900), cell B1 has a time interval (25min), Cell C1 gives total (925). Cell B2 has the next time interval (56min). How do I get cell C2 to give total of 1021 rather than 981? Values in columns B and C continue on down.

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Apr 21, 2009

I have a timesheet which for certain days of the year calculates double-time. What i would like to do is have a formula that gives double time for a 24 hour period. I have a formula setup with a start time and end time for my double time, but it wont stop at midnight.

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Jan 9, 2014

I get data in the form of an .xls worksheet that includes a date column and an "hour" column. The hour column contains 1-2 digits representing the hour of the day (0-23). I need to be able to combine the date and time fields for graphing, searching, and sorting the data. No matter what I try, I can't get excel to recognize the hour as the time of day (e.g. 2 = 2:00am, 16 = 4:00PM, etc). The data sets tend to be large and I get new data in the form of new .xls files often, so a script to convert the data is probably not a good solution.

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Jan 22, 2009

This code help me in typing the date and time in any cell of column (B) automatically just in case I enter somthing in any adjacent cell of column (A)

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Mar 2, 2006

How do I convert 7.30 hours into 7.21 (ie 7 hours 21min.) Note I do not wish

to use the standard hour:minute formatting.

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Oct 9, 2011

I am trying to determine a formula to know a period time for example i started to test a unit at 10:20 am of 10/02/2011 and i would like to add 52 hours of test and i would like to know when and at what time will finish the test?

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Apr 9, 2008

I have a project where I have to work out the value of cars over a period of time.

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Each car costs £10000 and I need to know what the value of each car is at the end of each year

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Feb 13, 2010

I have sheet that is populated with data daily. I wish to create graphs from information contained within a table in this sheet where i can select the start date and end date of the graph possibly from a drop down menu. I will be creating multiple graphs and wish for them all to change when i select the time period.

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