Before going any further, please note that I have very poor knowledge in Excel, and that 99.99% of the time I have to search on the internet to achieve the simplest things in Excel; although I have to use it for "simple" calculations.
Be assured that I have already gone through this and to many try and tests.
I have a table similar to this:
I want to subtract the values of "Discovery End Time" to the "Discovery Start Time" in a third column in order to find the duration of an action.
I do not care at all about the gibberish after yyyy-mm-dd hh:mm:ss in the calculation. It should not appear in the column duration.
I have tried many things, such as what is on this page but failed until now.
Any hints please?
The problem is all the extra information after yyyy-mm-dd hh:mm:ss.000 which it the max accuracy of Excel. So we just use the left 19 characters, since you do not care about the decimal seconds.
=LEFT(B2,19)-LEFT(A2,19)
This will probably return a double. You will need to format the cell as desired: [hh]:mm:ss
Related
I am working on the capstone project in of the Google Career Certificate in Data Analytics. I am using Microsoft Excel. I have to calculate the ride length based on the start and end ride times. I've inputted the formula =F2(end time)-D2(start time) which returns the ride length. Going through my entire list I have some areas where the start time is like 11pm and the end time is 1am and this is returning ###### because it is a negative number with the regular formula. I've found a modified formula that can kind of do the conversion I am looking for but it is still a bit problematic. The modified formula is =(F2-D2+(F2<D2))*24 and it seems to give an accurate ride length if I reformat the answer to number. The issue is the rest of my data is in time format and the modified ones are in number format. If I convert the number values to time, the ride length values are inaccurate.
It is tricky to make the numeric value change as well due to me using a formula. I can correct them one by one after I save Excel and it no longer stores the numbers as the formula, but there are lots of data points to change and that would be time consuming. I'm hoping to find a more concise way to solve this problem. Maybe with a better formula.
[Snippet of the chart 1
Just like everything in life, there are multiple ways to achieve things. I would have formatted the date and time into a single cell; but. if you're gathering the data from another source, that's understandable.
A simple IF statement here will work. IF the days are one apart, then take '1' day off the starting time, else do your original formula:
=IF(E4-C4=1,F4-(D4-1),F4-D4)
I have been racking my brain for hours on how to do this, so I am reaching out to some of you excel experts.
Say you have a duration represented as 1d 14:25:00 and you want to reduce that by a given percent, such as 149.5%, how can this be done?
At first I thought about going down the route of having a cell formatted in time, but when you try and do math against it, it fails.
Then I thought about maybe converting the time down to seconds and working with that, but that seems like it is total pain in the rear. It involves a lot of converting from time to number then back to time to display it. There has to be an easier way.
It depends on how you format the cell to read the Date/Time. If it's represented as a Time, then I believe the best approach is to convert the percentage into a decimal number (i.e 150% = 1.5), then use that in your formula.
However, it also requires applying the cell format to the custom format of [h]:mm:ss to include any times above 24 hours. See the image below for an example.
Time Conversion Example:
The only alternative is a "pain in the rear" - breaking the time down into seconds.
Excel includes built-in functions to convert a Date/Time into HOUR(date), MINUTE(date), and SECOND(date). Unfortunately, getting the number of days requires calculating the difference between two times: DAYS(end_date, start_date). I used this in the example above for the rows titled Conversion.
I am pulling Cross Country race times, and trying to convert the race time into an integer that can be easier to work with.
I am using the formula
=([Cell Name]-INT([Cell Name])*60*24
But I am so far retrieving two different time formats:
17:23.4
15:09
Both formats take that formula differently, and they are producing different numbers. The first format is changed into 17 minutes, but the other is turned into 1000+ minutes. Is there a way that I can convert these times into one format?
The main problem you are having is as tom sharpe pointed out is that some times are being assessed as HH:MM and others as MM:SS. if you look at your source data cell (assmue A2) and use the following formula it will tell you if you are dealing with text or time in excel serial date time formatted to appear in a manner we are used to seeing:
=ISTEXT(A2)
now assuming that the result is TRUE, this means you are dealing with TEXT. Adding a leading 0: to the text will make the time recognizable to excel as being in the format HH:MM:SS and allow for you to deal with it consistently.
To do this use the following formula:
=timevalue("0:"&A2)
Things may get a little wonky if ou have anything greater than or equal to 60 as the first two digits.
once you have it in the proper format you can then use it in your formula.
I'm working on an excel 2010 sheet where I mark down the date and time an event happens. The date is in one column, and auto formats to 17-Nov when I would type in 11-17 (I was fine with this). The time is in a separate column.
I am trying to find the average time an event occurred, without regard to the date, so I would use =AVERAGE(C1:C10). However, I only receive a date back (like 17-APR).
I did not format the cells before I began to enter in data, and I would simply type in a 3:27pm event as 1527, and no reformatting would happen.
Now, when I attempt to reformat the column to hhmm, all the numbers entered so far turn to 0000. When I try to edit the 0000, it is formatted as 6/13/1906 12:00:00 AM.
What I want to do is have the time formatted as hhmm and not include a date in the cell, and be able to run formulas on it, such as the average time an even occurred.
Summary:
*Currently time is entered simply as ####. I entered 3:27pm as 1527.
*Trying to reformat the time column results in 0000 in all cells in the column that previously had a ####.
*Modifying the 0000 displays as 6/13/1906 12:00:00 AM
*I want to format the time as hhmm so I can simply type in 2357, and have it display as 2357, but understand I mean 11:57pm, and let me take averages.
*Hell, even being able to enter 1547 and have it auto format to 15:47 or 3:47p would be great.
Thanks for reading my question!
An easy way to apply an autoformat (though Excel won't see it as a true "Time") is to go into Format Cells>Custom> and use ##":"##. This will turn 1245 into 12:45. Mind you, this will be a text string so if you copy it to another cell and then apply a time, it will show as 12:00:00. Excel will also not be able to run formulas on it, but it's a quick and dirty way to make it look pretty.
Another option is to have a formula such as =TIME(LEFT(A1,2),RIGHT(A1,2),) where A1 would be replaced with the cell you are actually referencing. This will convert the number to a time that Excel will recognize as a time allowing you to run other functions on it, but requires another column.
If you are entering the times as 4-digit numbers, you'll need to do a calculation to get the hours and minutes, then use the TIME function to get an actual time:-
=TIME(A1/100,MOD(A1,100),0)
Another way is
=LEFT(A1,2)/24+RIGHT(A1,2)/1440
but then you have to format the result as a time.
Excel sees a number like 1547 as approximately 4 years on from 1st January 1900 if you format it as a date, so it will come out as something like 26/3/1904 in UK format or 3/26/1904 in US-style format.
Note that the time function can only give you values up to 23:59:59 (stored as 0.999988426), but the second method will give you a datetime value with one or more days as the whole number part. This can be useful if you want to do calculations on times spanning more than one day.
The above behaviour is because dates and times are stored as real numbers with the whole number part representing days and the decimal part representing fractions of a day (i.e. times). In spite of misleading information from Microsoft here, dates actually start from 31/12/1899 (written as 0/1/1900) with serial number 0 and increment by 1 per day from then on.
I'm writing a spreadsheet for a shop manager. What it does is keep track of the number of hours a worker has worked.
So you enter times for Monday-Sunday, and then an adjustment - e.g. if they work 40/40/40/32 hours for the month, then you would have an adjustment of -2/-2/-2/+6 to bring the worker to the 38 hour week that he's being paid for. Some (most) weeks may be adjusted for overtime. The spreadsheet then totals the hours.
This spreadsheet is supposed to just be a self-calculating version of a paper form.
It needs to match the paper form as it has to be substituted for the old form which is given to some other member of the company (pay clerk, I don't know; I'm not rebuilding their whole system, just replacing a form)
I'm having trouble entering a negative time in the adj field - the field has a [h]:mm formatting. and when i enter a negative time (e.g. -2:00) it displays an error, saying "incorrectly formatted equation", with the suggestion that if I was entering a string then I should prefix with a apostrophe.
How do I overcome this?
Tools - Options - Calculation - 1904 date system
Check this box to use the 1904 (Mac) date system and you will be able to use negative dates and times. I'm not sure how this will effect existing spreadsheets, so maybe someone else can speak to that.
According to Excel...
"Dates and Times that are negative appear as ########"
Doesn't sound like you're going to be able to do that with an auto-summation formula. You'll have to set the formatting as none and just type it in (which defeats the purpose).
I am solving the same problem. Setting for date formatting "1904" is necessary for both below described solution.
You can enter an equation as a result of predeceasing cells like C5-C4-C3 (check out-check in-standard working time). The result is negative and it will be displayed like -1:15 and you can further process it.
Second way was already described above - to put into the requested cell a negative decimal value as a fraction of "1". "1,000"=24 hours, "0,5"=12 hours, "0,01"= 14 minutes, "0,041667"=1 hour. You have to find the correct decimal numbers first.