We have a process that shouldn't go over 24 hours (it did) and I have simply been copy/pasting the times from the reporting system i.e. 00:01:05 to 01:23:38 and simple subtraction to give me hours/minutes/seconds duration.
Excel is fine if this is the same 24 hour period, but those two times are split by 24 hours. As you can gather the copy/paste is not including dates so how do I trick excel into adding another 24 hours.
I've read quite a few options out there but none of them seem to work, or its just my 2020 brain....
So long as the interval will never be equal or greater than 24 hours, you can use:
=end-start+(start>end)
If it might be => 24 hours, then you will need to add date information.
Related
I am attempting to find any gaps calculated in minutes between a start and stop date/time range. Essentially time when there are no appointments in the schedule, this is a 24hr service and I am looking for "dead" time when there isn't a customer in the office.
Currently I was attempting to use the =SUMPRODUCT((A2<B$2:B$19)*(B2>A$2:A$19))>1 to find overlaps and the issue I am running into is if there are any overlap in start or stop it disqualifies and does not truly identify the space between appointments just if that appointment is double booked at all.
Here is a new version of the Gap and Island solution to this problem, using Excel 365 functionality:
=LET(start,A2:A19,
end,B2:B19,
row,SEQUENCE(ROWS(start)),
maxSoFar,SCAN(0,row,LAMBDA(a,c,IF(c=1,INDEX(start,1),IF(INDEX(end,c-1)>a,INDEX(end,c-1),a)))),
SUM(IF(start>maxSoFar,start-maxSoFar,0)))
The algorithm is very simple:
- Sort data by start time if necessary, then for each pair of times:
- Record the latest finish time so far (maxSoFar) (not including the present appointment)
- If the start time (start) is greater than maxSoFar, add start-maxSoFar to the total.
The first time interval is a special case - initialise maxSoFar to the first start time.
It can be seen that there are only two gaps in the appointments, from 4:15 to 7:31 (3 hours 16 minutes) and from 11:48 to 14:17 (3 hours 29 minutes) totalling 5 hours 45 minutes.
Why didn't I just use Max to make the code shorter? I don't know:
=LET(start,A2:A19,
end,B2:B19,
row,SEQUENCE(ROWS(start)),
maxSoFar,SCAN(0,row,LAMBDA(a,c,IF(c=1,INDEX(start,1),MAX(INDEX(end,c-1),a)))),
SUM(IF(start>maxSoFar,start-maxSoFar,0)))
To find the gaps between appointments in a schedule, you can try using the following formula:
=SUM(B2:B19)-SUMPRODUCT((A2<B$2:B$19)*(B2>A$2:A$19))
You can then convert the duration to minutes by multiplying the result by 1440 (the number of minutes in a day).
=1440*(SUM(B2:B19)-SUMPRODUCT((A2<B$2:B$19)*(B2>A$2:A$19)))
I'm making something in excel which calculates my hours I work a week/month, when a number gets to 30.60 (two shifts which when finishing on the half an hour) it calculates it as 30.60*wage=not the right pay.
so far I have =ROUND(SUM(C6:I6),0) which rounds up the number, which works fine until I have another day which I work till half an hour then it will just show 16 or so.
As you can see here, it calculates it fine until I work 7.30 hours on a wednesday, the total shows 23.00 instead of 23.30.
How can this be done.
Thank you.
your problem is with excel understanding of your "hours". When you write 7.30 you mean 7 hours 30 minutes = 7.5 hours. But excel understands that as 7 hours and 30/100 of hour = 18 minutes. The easiest solution would be to use 7,5 for 7 hours 30 minutes.
(for sake of checking the question off the unanswered I copied my comment)
If you don't want to use 7.5 (Seven-and-a-half-hours) or 7:30 (7 hours, 30 minutes - but remember to multiply this by 24, since Excel stores this as the fraction of a day, 0.3125) then you can use INT and MOD:
=INT(C6)+(MOD(C6,1)/0.6)
The first part, INT(c6) will give you the Integer part (i.e. whole hours) which we don't want to scale/skew.
The second part has 2 stages. First, MOD(c6,1) will give us the Decimal part of the number (i.e. 7.3 will become 0.3) and the second part is to divide by 0.6 to convert from "fake-minutes" to "fraction-of-real-hour"
Finally, since you want to apply the formula to an array of cells, you will need to swap from SUM to SUMPRODUCT:
=SUMPRODUCT(INT(C6:I6)+(MOD(C6:I6,1)/0.6))
But, overall, best option is to use 7:30 and set Data Validation only allow actual Time values in that field.
{EDIT} Of course, this will give your output with 0.5 for 30 minutes. If you want to reverse back to 0.3 for 30 minutes (although, I can scarcely fathom why) then you need to run the same calculation in reverse:
=INT(SUMPRODUCT(INT(C6:I6)+(MOD(C6:I6,1)/0.6))) + 0.6*MOD(SUMPRODUCT(INT(C6:I6)+(MOD(C6:I6,1)/0.6)),1)
I am attempting to sum up hours per day across numerous fields. The issue I am encountering is when the sum passes 24 hour it defaults to 24 hour clock so 01:00:00 for 25 hours when actually I want it to show 25:00:00. Can anyone advise on this please? Many thanks,
Depends how your data is formatted - what happens if you change the custom number format to this:
[h]:mm:ss
The time is stored as a number by Excel and it will only show from 0 to 24 hours. If you format the cell as a number it should be 1.04 which Excel sees as 1.04 days and only uses the .04 when formatted as a time. Add *24 to your calculation and you will get 25.00.
It's a little more tricky to get your desired format hh:mm:as but I'll have a go and get back to you shortly.
I need to change a value of time from days:hours:minutes, into either hours with a decimal or minutes. My data comes up as 001:05:46 for example. I am having trouble with the leading zeros confusing excel. Any help would be great!
Assuming that your value to parse is formatted in DDD:HH:MM like 001:05:46... There are a lot of ways to do this but here's a simple one. To convert into hours we need to take the days times 24 hours per day, add the hours, and add the minutes times 1 hour per 60 minutes:
=LEFT(A1,3)*24+MID(A1,5,2)+RIGHT(A1,2)/60
To get this value in terms of minutes we multiply by 60 minutes per hour. A possible modification of the original formula to reach this point would be:
=LEFT(A1,3)*24*60+MID(A1,5,2)*60+RIGHT(A1,2)
I am doing some work in Excel and am running into a bit of a problem. The instruments I am working with save the date and the time of the measurements and I can read this data into Excel with the following format:
A B
1 Date: Time:
2 12/11/12 2:36:25
3 12/12/12 1:46:14
What I am looking to do is find the difference in the two date/time stamps in mins so that I can create a decay curve from the data. So In Excel, I am looking to Make this (if the number of mins in this example is wrong I just calculated it by hand quickly):
A B C
1 Date: Time: Time Elapsed (Minutes)
2 12/11/12 2:36:25 -
3 12/12/12 1:46:14 1436.82
I Have looked around for a bit and found several methods for the difference in time but they always assume that the dates are the same. I exaggerated the time between my measurements some but that roll over of days is what is causing me grief. Any suggestions or hints as to how to go about this would be great. Even If I could find the difference between the date and times in hrs or days in a decimal format, I could just multiple by a constant to get my answer. Please note, I do have experience with programming and Excel but please explain in details. I sometimes get lost in steps.
time and date are both stored as numerical, decimal values (floating point actually). Dates are the whole numbers and time is the decimal part (1/24 = 1 hour, 1/24*1/60 is one minute etc...)
Date-time difference is calculated as:
date2-date1
time2-time1
which will give you the answer in days, now multiply by 24 (hours in day) and then by 60 (minutes in hour) and you are there:
time elapsed = ((date2-date1) + (time2-time1)) * 24 * 60
or
C3 = ((A3-A2)+(B3-B2))*24*60
To add a bit more perspective, Excel stores date and times as serial numbers.
Here is a Reference material to read up.
I would suggest you to use the following:
Combine date to it's time and then do the difference. So it will not cause you any issues of next day or anything.
Please refer to the image with calculations. You may leave your total minutes cell as general or number format.
MS EXCEL Article: Calculate the difference between two times
Example as per this article
Neat way to do this is:
=MOD(end-start,1)*24
where start and end are formatted as "09:00" and "17:00"
Midnight shift
If start and end time are on the same day the MOD function does not affect anything. If the end time crosses midnight, and the end is earlier then start (say you start 23PM and finish 1AM, so result is 2 hours), the MOD function flips the sign of the difference.
Note that this formula calculates the difference between two times (actually two dates) as decimal value. If you want to see the result as time, display the result as time (ctrl+shift+2).
https://exceljet.net/formula/time-difference-in-hours-as-decimal-value
get n day between two dates, by using days360 function =days360(dateA,dateB)
find minute with this formula using timeA as reference =(timeB-$timeA+n*"24:00")*1440
voila you get minutes between two time and dates
I think =TEXT(<cellA> - <cellB>; "[h]:mm:ss") is a more concise answer. This way, you can have your column as a datetime.