Sometimes when we import data from another source in to excel, the dates are not imported properly. This can be due to any number of reasons, including,
- The date format is different from one that is understood by excel
- The data has some extra spaces, other characters before and after the date values.
- The dates are formatted for another country (or date system) and hence your version of Excel wont recognize them.
- The separator between date, month and year is not a known separator (for eg. 12=DEC=2009 instead of 12-Dec-2009), etc.
In this post, we will learn some tricks and ideas you can use to quickly convert text to dates.
Technique 1: Use Text to Columns Utility
- First copy the source data and paste it in a text file (open Notepad and paste there).
- Now copy the values from text file and paste them in Excel.
- At this point, Excel will prompt you for using “Text to columns” utility (or Text Import Wizard as it is called in Excel 2007)
- Go to the Text Import Wizard (or Text to Columns dialog).
- Leave defaults or make changes in step 1 & 2.
- In step 3, select “Date” and specify the format of the date – like YMD, MDY, DMY, YDM, MYD or DYM. It doesn’t matter what is the format of source date, month or year is. Excel can smartly understand them.
- Click “Finish”.
That is all. Your text dates are now converted to excel understandable dates.
Technique 2: Using Formulas to Convert Text to Dates
- Paste the data in a column (say “A”)
- Now depending on the format of source data, write one of the below formulas to convert text to dates.
Using DATEVALUE formula
DATEVALUE formula tells excel to fetch the date from a given input. It is a smart formula capable of converting dates stored as text to excel understandable date format. To convert a text in cell A1 to date, you just write =DATEVALUE(A1)
However, DATEVALUE formula has some limitations. It cannot process all types of dates. For eg. I have shown a few sample dates along with corresponding DATEVALUE output.
Readjusting Date Text so that it works with DATEVALUE formula
Whenever possible, your next best option is to re-adjust the source data text so that it can be understood by DATEVALUE formula. Here is an example.
We can use the text formulas like LEFT, RIGHT and MID to extract portions of the date text and then regroup them using & operator to create meaningful date text format that would be understood by DATEVALUE formula.
Technique 3: Using DATE formula to Convert Text to Dates
If your data has separate columns for date, month and year, you can use DATE formula to convert the data to dates like this:
=DATE(year,month,day)
For eg. =DATE(2009,12,31) will give the date 31st December, 2009.
Bonus Technique: Converting Dates to Text
If you want to convert excel dates to text values (for your report or some other purpose), you can use the TEXT formula like this:
=TEXT(A1,"DD-MMM-YYYY") will convert date in Cell A1 to DD-MMM-YYYY format. You can pass any other date / time formats to TEXT formula as well. [more: tutorials on TEXT() formula]
How do you deal with troublesome dates?
Of course, if it is a real date, we can always bolt. But if it is a date in the data, we need some tools to deal with it. I used to rely on formula based methods to clean the dates. But recently I discovered the import-text date conversion method. This is very powerful and straightforward. Now, I use it whenever possible to clean up my date data.
What about you? How do you deal with buggy / faulty dates in Excel?
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13 Responses to “Convert fractional Excel time to hours & minutes [Quick tip]”
Hi Purna..
Again a great tip.. Its a great way to convert Fractional Time..
By the way.. Excel has two great and rarely used formula..
=DOLLARFR(7.8,60) and =DOLLARDE(7.48,60)
basically US Account person uses those to convert some currency denomination.. and we can use it to convert Year(i.e 3.11 Year = 3 year 11 month) and Week(6.5 week = 6 week 5 days), in the same manner...
This doesn't work for me. When applying the custom format of [h]:mm to 7.8 I get 187:12
Any ideas why?
@Jason
7.8 in Excel talk means 7.8 days
=7.8*24
=187.2 Hrs
=187 Hrs 12 Mins
If you follow Chandoo's instructions you will see that he divides the 7.8 by 24 to get it to a fraction of a day
Simple, assuming the fractional time is in cell A1,
Use below steps to convert it to hours & minutes:
1. In the target cell, write =A1/24
2. Select the target cell and press CTRL+1 to format it (you can also right click and select format cells)
3. Select Custom from “Number” tab and enter the code [h]:mm
4. Done!
Hi, sorry to point this out but Column C Header is misspelt 'Hours Palyed'
good one
So how do I go the other way and get hours and minutes to fractional time?
If you have 7.5 in cell A1,
- Use int(A1) to get the hours.
- Use mod(A1,1)*60 to get minutes.
If you have 7:30 (formatted as time) in A1
- Use hours(a1) to get hours
- Use minutes(a1) to get minutes.
I had the same issue. You can solve it by changing the format as described above:
Right click cell > Format Cells > (In Number tab) > Custom > Then enter the code [h]:mm
([hh]:mm and [hhh]:mm are nice too if you want to show leading zeros)
Thanks guys, these are the tips I'm looking for.
...dividing the number of minutes elapsed by the percent change is my task - "int" is the key this time
It doesnt work for greater than 24 hours
It returns 1:30 for 25.5 hours. It should have returned 25:30
Ideally I would right function as
=QUOTIENT(A1,1)&":"&MOD(A1,1)*60
Sorry, replied to wrong comment....
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I had the same issue. You can solve it by changing the format as described above:
Right click cell > Format Cells > (In Number tab) > Custom > Then enter the code [h]:mm
([hh]:mm and [hhh]:mm are nice too if you want to show leading zeros)
Clever use of MOD here to extract the decimal part of a number. Divide a number containing a decimal by 1 and return the remainder. Humm. Very clever.
Thanks very much, extremely useful !