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Date To Unix Time Stamp?

I have dates that I need to convert to a Unix timestamp.

Ex:
Date: October 20, 2003
Unix time stamp: 1066460400





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I am trying to automatically capture and record the date of a cell's last change in value (date stamp). I have an item price list and if a particular cell gets updated I want to automatically record the date of change of that cell. I realize that after I change cell A1 I could tab to cell B1 and enter Ctrl+; but if I have a hundred new prices to enter I don't want to do that (plus me or the data entry person might forget).

For instance,

A B
1 $32.17 8/17/08
2 $43.20 9/12/09

If I go in and update cell A1 to $33.98 today I would like cell B1 to read 2/16/10. But I don't want cell B2 to change.


Thanks


Is there a way to calculate the average days between a column of dates?

Basically, I've got a sheet that contains a table of entries, and each entry gets a date stamp in the first column. I would like to have the sheet display the average time, in days, between entries. Is this possible?

Thank you in advance!
~cp


Hi there

I am trying to calculate our On Time Delivery. I want this as a simple percentage of jobs. I have got this running in the following way:

Column M - Estimated Delivery dates
Column N - Actual Delivery dates
Column O - =IF(SUM(M2-N2)>0,1,0)

Then I have calculated On Time Delivery as: =SUM((SUM(O2:O252))/(COUNTA(N2:N252)))

This seems to work fine. My problem is, if we enter a date in Estimated without a corresponding Actual date, the formula for Column O fills out anyway and improves our On Time Delivery Percentage. How can I set this up so that the formula doesn't calculate if there is no data in Column N?

Any help much appreciated

Thanks,

James


I was able to convert start date and and end date to the number of days
inbetween the two dates. Does anyone know how to then convert the number of
days into months?



I have a workbook that has compliance dates in columns "F","G" and "H" from row 7. What I need is when the date in either column comes within 30 days to auto send an email, address in column "A", recipients name in column "B". and then place todays date in column 'P". ALso need to send a follow up email when either date comes within 7days and then place todays date in column "Q". If there is a date in column "P" then don't send email. If there is a date in column "Q" then don't send follow up. Can this be done without the users intervention and each time the workbook is opened.
Thanks in advance for any assistance.

Mick


Hello, please help me out with this one.

So I am at work workin on this report and I need a function that will make Excel automatically insert the today's date in a cell (let's say D90) when I fill the content of another cell (for example C90) and the that will be inserted will never change. I tried to use the =TODAY( ) function but it keeps updating the date in the cell to the current date if i reopen the worksheet 2 days later. I need the cell to keep in the cell the date of the day when I filled in the content of cell C90 and do not updated it every time i open the document to the actual date.. Thanks in advance!!


I use a excel file through the course of the day and need to insert the current date in one column and the current time in the next column. I want to be able to just highlight the selected range of cells I need to insert into and hit a macro button and have the date and time inserted into just the cells I have highlighted. I'm not sure how to make this work with just the cells I've highlighted. Any help any one can give me would be greatly appreciated. Thanks!
Mike


I am looking for assistance in having one cell in a text format equals another cell that contains a time value in hh:mm format.

For example: Cell A1 has a time format (hh:mm) value of 04:00; which is the Start Time. I would like cell D1 to have a text format value of "04:00" (result is dependant upon what is entered in A1). I would duplicate the same formulas to reflect Stop Times in other cells.

My final result is to have another cell (F1) use the Concatenate formula to have the Start and Stop time shown in one cell as "04:00 - 12:30". The times would change based on the Time formated values entered into the Start and Stop time cells.

I have researched this in the board and found many excellent ways to do the opposite, but not convert Time format to Text format. Any assistance is greatly appreciated.

-Shane


Hi all,

I hope you can help me with what I would like to do. I've searched and searched and not come up with anything yet!!

I have one sheet which is my 'data' sheet with a number of columns, one of which is a date which may be repeated.

I then want to use another sheet with two cells where two dates can be entered and a button which allows you to copy the rows of data from the data sheet which have dates between the two specified originally. The list in the data sheet may not be in date order although I could update a macro to do this for me if needed. I would also like to do it so that if "ALL" is typed in the date fields, it pulls over ALL the data. (Or something similar)

Any help you can give would be much appreciated.

Cheers,

Kevin


How I Can Maintain The Stock Register On Excel Sheet By Date Wise ?

But I do not want to insert any sheet for different dates & also the format will not be copied & paste in the same sheet. Just at the place of Date the date will be changed & the datas will be entered manually for each day.

In future, when I shall put the date, the datas will show that particular date's datas only.

Can anyone help me ?


I've been poking around trying to figure this out but can't. The time of 9 hours, 15 minutes is being returned from a calculation but I want the cell to display the 9.25 hours instead. This seems like something simple on the surface, but apparently it's not. Any help would be appreciated!


Hi there,

How i can convert Hijra (Islamic) Dates into Gregorian?

a formula or VB

any help


i've been trying to figure this out on my own but seem to be hitting road blocks.

i have a column of numbers that we extracted from a database as whole numbers. for instance, 30 should be .30 and 100 should be 1.00. when i try to increase or decrease the decimal point it doesn't allow me to convert it to those positions.

would any one have a tip of how i can easily convert this? there are over 2000 entries in my excel spreadsheet so to do it manually would take a lot of time/effort.

thank you!


I need a formula to calculate Turn Around Time. Find below the sample data and details for your reference.

Received Date & Time: 10/29/2010 3:27:00 PM
Completed Date & Time: 11/1/2010 3:57:32 AM
Business Hours: 08:00 AM to 05:00 PM
Non Business hours: 05:00 PM to 08:00 AM
Weekdays : Monday to Friday
Weekends: Saturday & Sunday

If I calculate TAT for this time period it should show me 1 hour 33 minutes, why because business hours are closing by 5:00 PM on 10/29 so it should not calculate duration after 5:00 PM to until 08:00 AM on next day, however 10/29 is Friday so formula should calculate the duration from 10/29 Friday 3:37 PM to 10/29 5:00 PM and again it should calculate from 8:00 AM on 11/01 Monday and formula should skip Saturday & Sunday.

In this scenario I have completed the task before 8:00 AM on 11/01 so it should show duration of 1hour 33 minutes.

Please let me know if you need any more details


Hi,
I made a simple worksheet that we have been manually entering the time for employees, but there are too many errors (even with simple math). Can someone help me convert the time of ex: written 8-4:30 or 10-3 (meaning 8:00am to 4:30pm) where you have the total weekly hours? Right now I have a column for overtime. Is there a way to automatically calculate the over time also? The work day is 8-4:30 with a half hour lunch (lunch is not calculated into the hours, so you minus a half hour). 8-4:30 equals 8 hours. So, if a person works 8am to 6:30pm, how can I set it up where in the first row of time, I will type in 8-6:30pm. In the totals column to the far right, it will display 8 hours. In the (O.T.) column, it will display 2 hours.

This way, when I call in my payroll, I will have the total "regular" hours in one row and underneath, I will have the total overtime hours.

Or... does anyone have a better solution to keeping track of their hours?

Thanks!
Marty


From limited experience I know that excel calculates dates via serial numbers.

I have formulas to add a number of days to a cell containing an entered date and display the resulting new date (ie. 03/01/2011 (c34)+11 = 03/12/2011)

I am seeking to leave resulting formula cell blank until a date is entered in the input cell. Currently when the input cell is empty the formula cell obviously displays 1/11/1900 using the above example.

What conditional format would achieve leaving the formula cell blank until date data in entered into the source cell?

Hopefully a simpler question for your experience level than mine.


Good afternoon,

Is there a way to enter a colon into a standard number to create a value that can be formatted into a 24 hour time value ?

eg a time is listed as 1345 with a general number format, and I want it returned as 13:45 witha custom format of hh:mm.

Other than creating a table and using a vlookup function, I am hoping there is a better way?

Darren


I have a template that automatically populates the date field with the
current date when opened, using today(). Users then Save As to have an
archive copy of their spreadsheet. However, when they go back to access
their saved sheet, the date changes from the created date to the current
date. How do I stop this in Excel?

I know that Word lets you do this by changing the code from {DATE} to
{CREATEDATE}, but I can't find a similar setting in Excel.

Please help and thank you!



Happy Day to all,

Can you please help me,

A1= time in
B1= time out
C1= time in
D1= time out

I want to calculate the late and under time,
Office start at 9:am w/30 mins Grace period,
The break time is one hour only, please include over breaktime in calculation.
End of office hours 6:00 pm, strickly no over time


Good day... I need an IF Function that will allow me to action a time in a time range:

... If the time 04:16 falls in the time range 04:00 - 04:29, than put a one (1) in the filed x...
... If the time 04:16 doesn't fall in the time range 04:00 - 04:29, than leave the x fiel empty

Any help is appreciated.


I have data with time in standard fromat i.e. 3:00PM but I need it to be in
24 hour format i.e. 15:00. How can I do this?



In Excel I have been trying to find an easier way to calculate a time
difference where the times cross midnight. Example:
Start time: 23:50:00
End time: 00:15:00

How would you formulate an equation to determine the duration of time or
differnce between the start and end time?



Hi was wondering if anyone can help.

I am trying to reference a cell on another worksheet, the cell is formatted to be a date. when i put in the following formula =Sheet2!A1 and i don't input a date into A1 on sheet 2 the cell containing the formula shows the date 00/01/1900, is there any way of stopping this showing, ideally the cell would be blank until I inputted a date into A1 on sheet 2

Any help would be very much appreciated


I'm trying to format a worksheet to show how many days overdue certain tasks are, and running into a couple of issues. The sheet is set up with Due Dates in Column A, Days Overdue in Column B, and Date Completed in Column C. My first thought was just to use as simple a formula as possible in Column B =Today()-A2. This worked alright for tasks that already had Due Dates assigned, but if Column A was blank I'd get a high number in Column B. I also realized that tasks will continue to show as overdue even after I enter the completed-on date in Column C. Is there a relatively simple way to tackle this formula? Thanks in advance for suggestions. (I've attached an example with the column headings I want to use.)


Hi Guys,
I need help....I am working production scheduling with Start and End time but there is a lunch time and tea time. Is there any formula to calculate Start time to End time with excluding lunch time?
Here is example :

Lunch time :12:00pm to 1:00pm.
Duration Process :6 hours.
Start Time (8:00am)
End time (5:00 pm)

I need a formula to calculate from Start Time 8:00am and what is the End Time? with 1 hour lunch time...

Thanks,
ET



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