This is my first post so hopefully it will be within regulations etc.
I am trying to write a data validation using the custom option.
The validation needs to check a date against potentially 3 other dates. I say potentially as one might not be filled in.
The the first two are boundary dates CalSD and CalED (Calendar Start Date and Calendar End Date)
The check dates are start and finish dates within a scope.
The ScopeStart Date needs to be:
less than ScopeEnd Date
less than CalED
greater than or equal to CalSD
both a number and a date
i have tried using:
=AND(ISNUMBER(D13),OR(D13<E13,NOT(ISNUMBER(E13))),D13>=CalSD,D13<CalED,LEFT(CELL("format",D13),1)="D")
However it appears to not like the OR section. if the date in E13 is missing then D13 is not < E13 and so the validation no longer works if the date d13>CalED for instance.
when there are two dates the validation works fine, or if I remove that section it works fine. but then there is nothing to check that the start is before the end scope date.
Hope all that makes sense?
Cheers
JontyR
Related
I'm trying to put together an excel spreadsheet to show the day-by-day impact of stays by 3rd country citizens in the EU's Schengen area (it's a fairly complex rolling 180 day window). At the moment, I have a column with every day from a start date (so lots of rows) and another where I enter a 1 if there was a stay in a Schengen country for that day. Then other columns calculate when the 180 day period started and how many days have been in Schengen for that day.
It's a bit of a faff having to enter a 1 for every day away. I'd like to have another worksheet where I simply enter the start and end dates of (an arbitrary number of) each stay and then the calculation spreadsheet simply works out if each date falls within a stay or not. Working out whether a date falls within one date range is pretty straightforward, but working out if it falls within several date ranges isn't obvious to me. Any suggestions please?
After a very fair comment, here's a couple of images that hopefully illustrate what I'm trying to do (please ignore the colours).
Example of date ranges, but the number of these should be arbitrary:
The calculated sheet - currently I have to enter the 1s individually whereas I'd like them evaluated from the date ranges:
I have the following excel result:
I want to group the above result in groups based on sessions i.e. if the time gap between two successive timestamps is greater than 5 minutes, it must be a new row.
For example :
I need some formula to achieve this. As I'm fairly new to Excel this is causing to be a major headache for me. Please help me, if anyone knows how to do it or at least point me in a direction.
Thanks a ton !!!
Judging by your screenshot, it appears your timestamps are actually text values. Text by default is usually left aligned where as numbers are right aligned. You seem to have a space at the end of your time stamp suggesting that it is probably left aligned and therefore text. You can test it with the following formula which will return TRUE if its text.
=ISTEXT(P2)
where P2 is one of your time stamps.
CONVERT TIMESTAMPS TO TIME
There are a variety of ways to do this. Some will depend on system settings. Take a look at the following functions as each might be useable depending on your system. The first two are a guarantee, the last two are more dependent on system settings.
DATE
TIME
DATEVALUE
TIMEVALUE
Something important to remember here is that in excel dates are integers counting the days since 1900/01/01 with that date being 1. Time is stored as a decimal and represents fraction/percentage of a day. 24:00:00 is not a valid time in excel though some functions may work with it.
So in order to convert your time stamp in P2 I used the following formula to pull out the date:
=DATE(LEFT(P2,4),MID(P2,FIND("-",P2)+1,2),MID(P2,FIND(" ",P2)-2,2))
Basically it goes into the text and strips out the individual numbers for Year, Month and Day.
To pull out the time, I could have done the same procedure but elected to demonstrate the TIMEVALUE method which is a little more robust than DATEVALUE and not a subjective to system settings as much. With the following formula I stripped out the whole time code (MINUS"UTC"):
=TIMEVALUE(TRIM(MID(P2,FIND(" ",P2)+1,FIND("UTC",P2)-FIND(" ",P2)-1)))
I also made an assumption that you are not mixing and matching UTC with other time zones which means it can be ignored. Now to get DATE and TIME all in one cell, you just need to add the two formulas together to get:
=DATE(LEFT(P2,4),MID(P2,FIND("-",P2)+1,2),MID(P2,FIND(" ",P2)-2,2))+TIMEVALUE(TRIM(MID(P2,FIND(" ",P2)+1,FIND("UTC",P2)-FIND(" ",P2)-1)))
In the example at the end, I placed that formula in Q2 and copied down
DELTA TIME
Since you want to break your groups out based on a time difference between individual entries, I used a helper column to store the time difference. In my example at the end I stored this difference in Column S. The first entry is blank as there is no time before it. I used the following formula in S3 and copied it downward.
=Q3-Q2
I applied the custom formatting of [h]:mm:ss to the cell to get it to display as shown.
FIND GROUP BREAK POINTS
In my example I am using helper column T to hold breakpoint flags. At a minimum, you will have two break points. Your first time entry and your last time entry. To make like simple I simply hard coded my first breakpoint flag in T2 as 1. Stating in T3, Three checks need to be made. If any of them are TRUE then the next flag needs to be added with a value increase by one. the three checks are:
Is this the last entry
Is the next time delta greater than 5 minutes (means end of a group)
Is this time delta greater than 5 minutes (means start of a group)
Based on those three checks I placed the following formula in T3 and copied down:
=IF(OR(S4="",S4>TIME(0,5,0),S3>TIME(0,5,0)),MAX($T$2:T2)+1,"")
Note the $ on the first part of the range for the MAX function. This will lock the start of the range while the formula gets copied down while the end of the range increases accordingly.
Also the row after the last time entry must be blank. IF it is not blank and has a set value in it, change the S4="" to S4="set value".
GENERATE TABLE
There are multiple ways to reference the flags and pull the corresponding times. a couple of formulas you can look into are:
INDEX / MATCH
LOOKUP
In this example I elected to use LOOKUP though I believe INDEX and MATCH are more appropriate and robust. For starters we want to generate a list of ODD number and EVEN numbers. These represent the start and end of the groups and correspond to the flags set in column T. One way to generate ODD and EVEN numbers as you copy down is:
=ROW(A1)*2-1 (ODD)
=ROW(A1)*2 (EVEN)
The next step is to find the generated number in Column T and then pull its corresponding timestamp in Column Q. I did this with the following formula in V2 and copied down.
=LOOKUP(ROW(A1)*2-1,T:T,Q:Q)
And in W2
=LOOKUP(ROW(A1)*2,T:T,Q:Q)
I have a sample data here that I want to get the days delayed.
As you can see,
The data shows the records for those users who did not submit their project, users who submitted on-time, and users who actually dont submit their project.
Currently,
I have this formula
=DATEDIF(A2,B2,"d")
for the first row to calculate the days delayed of first row.
Can I add in this formula that detects if the user dont submit their project and the delayed days continues counting for day delayed? Like for example the data on row 4. The column submitted_project is blank means the user still dont submit their project the days delayed will start counting after the deadline.
You don't need DateDif for that. (By the way it's Date-Dif for "date difference", not Dated-If)
You can simply subtract the two dates from each other and format the result as a number.
DateDif expects the earlier date as the first parameter, that's why it errors when the first parameter is the later date, i.e. when the project was submitted before the due date.
But with simple subtraction like =B2-A2 you can get the correct result. Better even, to check that both cells have dates before doing the calculation, to avoid misleading results, so
=if(count(A2:B2)=2,B2-A2,"")
Edit after comment: Yes.
=IF(COUNT(A5:B5)=2,B5-A5,IF(B5="",TODAY()-A5))
I have a gate keeping report with a number of entry/exit times for an employee over a 24hr period.
I need another formula to go into I40 which is the difference between the first entry time - last entry time for each employee eg. I40 = F50 - D40.
Dont worry about the formula regarding the subtraction of dates as I have this. I really just need the formula that will allow me to get the Last Exit time cell and the First Entry time cell for each employee.
The best way is to always store datetime values (ie, 2018-05-24 13:454) instead of just the times. You could still display it as a time by changing the cell's formatting to a time format.
Shortcut to Number Formatting options: Ctrl+1
There are many advantages, including that "regular math" will still work even if a shift starts in a different day than it ends.
If you must stick with only times, you can still calculate it correctly (up to a 23.9-hour shift) with an IF statement to add a day if the returned value is negative.
For example, if your existing formula works for same-day shift, and is:
=F50-D40
...then you could change it to:
=IF(F50-D40<0,F50+1-D40,F50-D40)
More Information:
Office.com : How to use dates and times in Excel
Office.com : Add or subtract time (Excel)
EDIT:
Looking at your question again, perhaps I misunderstood what you were trying to ndo. It's a little unclear, but you mention the fist and last times.
If you mean the "earliest and latest", you can get those using MIN and MAX. If the crossing-midnight is an issue here too, you'll need to see my first suggestion above, or else add a "helper column" to determine which times are before which.
Storing datetime is still best and this all would have been avoided.
try the below to get the difference in hours.
=(E50+F50)-(C40+D40)
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.