How to convert time to decimal number, hours, minutes or seconds in Excel

The tutorial demonstrates different ways to convert time to decimal in Excel. You will find a variety of formulas to change time to hours, minutes or seconds as well as convert text to time and vice versa.

Because Microsoft Excel uses a numeric system to store times, you can easily turn hours, minutes and seconds into numbers that you can use in other calculations.

In general, there are two ways to convert time to decimal in Excel - by changing the cell format and by using arithmetic calculations or Excel time functions, such as HOUR, MINUTE and SECOND. Further on in this tutorial, you will find the detailed explanation of the first way and formula examples demonstrating the other technique.

How to convert time to decimal number in Excel

Overall, there are three ways to change a time value to a decimal number: arithmetic operation, CONVERT function or a combination of three different Time functions.

The easiest way to convert time to decimal in Excel is to multiply the original time value by the number of hours, seconds or minutes in a day:

  • To convert time to a number of hours, multiply the time by 24, which is the number of hours in a day.
  • To convert time to minutes, multiply the time by 1440, which is the number of minutes in a day (24*60).
  • To convert time to seconds, multiply the time time by 86400, which is the number of seconds in a day (24*60*60 ).

Convert time to a decimal number in Excel

In the following sections, you will learn the other methods of converting times to a decimal number in Excel.

How to convert time to hours in Excel

This section demonstrates 3 different formulas to convert hours from the standard time format (hh:mm:ss) to a decimal number.

Formula 1: Arithmetic calculation

You already know the fastest way to convert a time value to a number of hours in Excel - multiplying by 24, i.e. by the number of hours in one day:

=A2*24

Where A2 is the time value.

To get the number of compete hours, embed the above formula in the INT function that will get rid of the fractional part:

=INT(A2*24)
The formula and arithmetic calculation to convert time to hours in Excel

Formula 2: CONVERT function

Another way to perform the "time > hours" conversion is to use the following Convert formula:

=CONVERT(A2, "day", "hr")

Formula 3: HOUR, MINUTE and SECOND functions

Finally, you can use a bit more complex formula, whose logic, however, is quite obvious. Extract the individual time units by using the HOUR, MINUTE and SECOND functions, then divide minutes by 60 (the number of minutes in an hour) and seconds by 3600 (the number of seconds in an hour), and add up the results:

=HOUR(A2) + MINUTE(A2)/60 + SECOND(A2)/3600

How to convert time to minutes in Excel

The same three methods can be used to convert minutes from the standard time format to a decimal number.

Formula 1: Arithmetic calculation

To convert time to total minutes, you multiply time by 1440, which is the number of minutes in one day (24 hours * 60 minutes = 1440):

=A2*1440

If you want to return the number of compete minutes, utilize the INT function like in the previous example:

=INT(A2*1440)

You can view the results in the screenshot below:
Converting time to minutes in Excel

Formula 2: CONVERT function

To do the "time > minutes" conversion with the CONVERT(number, from_unit, to_unit) function, supply "day" as the unit to convert from and "mn" as the unit to convert to:

=CONVERT(A2, "day", "mn")

Formula 3: HOUR, MINUTE and SECOND functions

One more way to get the number of minutes is to multiply hours by 60 and divide seconds by the same number:

=HOUR(A2)*60 + MINUTE(A2) + SECOND(A2)/60

How to convert time to seconds in Excel

Converting time to total seconds in Excel can be done in a similar fashion.

Formula 1: Arithmetic calculation

Multiply the time value by 86400, which is the number of seconds in a day (24 hours * 60 minutes * 60 seconds = 86400):

=A2*86400
Converting time to seconds in Excel

Formula 2: CONVERT function

The formula is basically the same as in the above examples with the only difference that you convert the "day" unit to "sec":

=CONVERT(A2, "day", "sec")

Formula 3: HOUR, MINUTE and SECOND functions

Use the HOUR, MINUTE and SECOND functions like in the two previous examples (I believe at this point you don't need any further explanation of the formula's logic :)

=HOUR(A2)*3600 + MINUTE(A2)*60 + SECOND(A2)

Tips:

  1. If any of the above formulas returns a value formatted as time, simply change the cell's format to Generalto display it as a number.
  2. To convert time to a decimal number that represents the time in the internal Excel system, apply the General format to the cell. With this approach, 23:59:59 will be converted to 0.99999, 06:00 AM to 0.25, and 12:00 PM to 0.5. If an integer part of the converted number is greater than zero, it means that your cell contains both date and time values.

How to split date and time in Excel

As is often the case, your Excel worksheet may contain dates and times in one cell, while you want to split them into two separate cells.

Remembering that in the internal Excel system the date value is stored as a whole part and the time value as a fractional part of a decimal number, you can extract the date using the INT function, which rounds the cell value down to the nearest integer.

Supposing your original dates and times are in column A, the following formula will accomplish the separation:

=INT(A2)
Use the INT function to extract the date values

To extract the time portion, subtract the date returned by the above formula from the original date and time value:

=A2-B2

Where column A contains the original date & time values and column B contains the dates returned by the INT function.

If you'd rather not have time values linked to the separated dates (for example, you may want to remove the date column in the future), you can use the following MOD formula that refers to the original data only:

=MOD(A2,1)
Splitting date and time in Excel

Tip. If the separated date and time values are not displayed properly, change the format of the new columns to Date and Time, respectively.

This is how you split date and time in Excel. If you want to further separate hours, minutes and seconds into individual columns, then use the HOUR, MINUTE and SECOND functions, as demonstrated in How to get hours, minutes and seconds from a timestamp.

How to spell time in Excel

Sometimes, you may need to convert time into the format that reads something like "# days, # hours, # minutes and # seconds". A good thing is that you already know all the ingredients of the formula:

  • Extract days using the INT function;
  • Extract time units with HOUR, MINUTE and SECOND functions, and
  • Concatenate all parts in a single formula.

Having difficulties with figuring out a proper formula for your worksheet? The following example will make things easy!

Supposing you have the dates of upcoming events in column B beginning in cell B4, and the current date and time returned by the NOW() function in cell B1.

The formula to calculate the time difference is as simple as =B4-$B$1. Of course, nothing prevents you from subtracting the current date and time directly with =B4-NOW().

And now, let's make a countdown timer that would show how many days, hours, minutes and seconds are left until each event.
Setting up a countdown timer in Excel

The formula to enter in cell D4 is as follows:

=INT(C4) & " days, " & HOUR(C4) & " hours, " & MINUTE(C4) & " minutes and " & SECOND(C4) & " seconds"
The formula to spell time in Excel

If you wish to get rid of 0 values, like in cells D6 and D7 in the screenshot above, then include the following IF statements:

=IF(INT(C4)>0, INT(C4)&" days, ","") & IF(HOUR(C4)>0, HOUR(C4) & " hours, ","") & IF(MINUTE(C4)>0, MINUTE(C4) & " minutes and ","") & IF(SECOND(C4)>0, SECOND(C4) & " seconds","")

All zeros are gone!
The formula to spell time in Excel excluding zero values

Note. When either of the above formulas refers to a negative number, the #NUM! error will appear. This may happen when you subtract a bigger time from a smaller one.

An alternative way to write time in words in Excel is to apply the following custom time format to the cell: d "day," h "hours," m "minutes and" s "seconds". No formulas and no calculations are required! For more information, please see Creating a custom time format in Excel.

Convert text to time in Excel

If your time formulas and calculations do not work right, time values formatted as text is often the cause. The fastest way to convert text to time in Excel is using the TIMEVALUE function.

The Excel TIMEVALUE function has just one argument:

TIMEVALUE(time_text)

Time_text is a text string in any of the time formats that Excel can recognize. For example:

=TIMEVALUE("6:20 PM")

=TIMEVALUE("6-Jan-2015 6:20 PM")

=TIMEVALUE(A2) where A2 contains a text string
Convert text to time using the Excel TIMEVALUE function

As you see, the formulas with cell references and corresponding text strings deliver identical results. Also, please notice the left alignment of time strings (text values) in cells A2 and A6 and right-aligned converted time values in column D.

Convert time to text in Excel

Supposing you have an Excel file full of times formatted to look like "8:30:00 AM" and you want to convert them to the text format. Simply changing the cell's format to TEXT won't work because this would change your time values to underlying numeric representation of the time. For example, 8:30:00 AM will be converted to decimal 0.354166666666667.

So, how do you convert cells to the text format so that your cells still have the time in them? The answer is to use the TEXT function that converts a numeric value to text with the display formatting that you specify, for example:

=TEXT($A2,"h:mm:ss")

The screenshot below demonstrates other possible formats:
Converting time to text in Excel

How to convert numbers to time format in Excel

If you have a list of numbers such as 1, 2, 3.5 and you want to convert them to a time format, for example 1:00:00, 2:00:00 or 3:30 AM, perform the following steps.

  1. Divide the numbers by 24 (there are 24 hours in a day). The formula can be as simple as =A2/24.
  2. Select the cell(s) with the formula result, right-click and select Format Cells from the context menu or press Ctrl+1. Either way, the Format Cells dialog will appear, you select Time on the left pane under Category, and choose the format you want on the right pane under Type. Please see How to format time in Excel for more details.

Converting numbers to the time format in Excel

If your time exceeds 24 hours, 60 minutes, 60 seconds, use these guidelines to correctly show it.

That's all for today. If someone wants to get the first-hand experience with the formulas discussed in this article, you are most welcome to download the sample workbook below.

If you want to learn a few more useful formulas to calculate times in Excel, please check out the related tutorials at the end of this page. I thank you for reading and hope to see you again next week!

Practice workbook for download

Converting time in Excel - examples (.xlsx file)

445 comments

  1. now i add two man working hours but it not produce the correct answer
    for example siva = 10.50 hrs
    raja = 10.50 hrs
    add 2 manhours = 21 hrs (excel result)
    but i want 21.40 hrs
    how do i do plz

  2. Hi
    I'm copying the data from the internet, the start time which in that format like "Fri Jan 11 20:30 19" and run time " 00:07:45:07" which is in "day:hour:minute:second" format. While pasting in to the excel sheet it's showing the show digit number like for start time 1547210301409 and run time value 27907397. Can u guys suggest me , How can i convert it in same format in excle ?

  3. Hi
    I want to show time without am/pm
    how can I do it?

  4. I'm trying to work out how to calculate time worked between 2 times, then minus 45 minutes break but then change the format from example 8hrs 45mins to 8.75hr
    Our payroll department, works in decimals (1hr 15mins is 1.25hr, 30mins is 0.5hr.

    I'm not sure whether that makes any sense or not.
    It will make doing my guys timesheets so much quicker each week.

    Many thanks
    Phil W

  5. How to convert any six digit no for example 71400 into 71° 40' 0" format in excel

    • Hello, Mohit,

      Please do the following to change the formatting of your cells:
      - Select a cell(s) for which you want to create custom formatting, and press Ctrl+1 to open the Format Cells dialog.
      - Under Category, select Custom.
      - Type the following format code in the Type box:
      ##°##'#''
      - Click OK to apply and save the this format.

      I can also recommend you to have a look at the following article on our blog to learn more about custom formats:
      Custom Excel number format

  6. Hey Honey,
    I have 4, I want this to be converted into hours. Please guide.
    Below are the more examples.
    0
    60
    6.25
    10
    Thanks

  7. Need help!!

    I have a column with below details and i wanted to convert to time but i dunno what's going to be the divisor to properly convert to such.

    0
    30
    100
    130
    200

  8. Thank you so much.

  9. Could you please help me with the following?

    If I were to start production at 7:00am and had a work order to produce 500 cases which should take 2.5 hours to complete how do I calculate the end time in excel?

    For example... What formula would I use to calculate the following?

    Start Time: 7:00am (Cell A1)
    Hours Needed: 2.5 (Cell B1)
    End Time: 9:30am (Cell C1)

    Thank you very much for your time!

  10. I have the number 6.53 which actually is 6 hours and 53 minutes and i need to deduct this number (6.53) from 8 hours to get to know how much hours and minutes are not attended by the employee so in excel what formula will give me the desired result.

  11. How do I convert 429:30 to 429.5?

  12. Hi
    Could you please help me with the following. My software returns an actual duration in the following way: 1 hour,30 minutes. This is returned in a single cell. However, I need to convert the output to 1.5 for example.
    Could you please let me know how I could do this.
    Many thanks

    • Vishal:
      This will give you the result you want from your sample:
      =LEFT(I29,SEARCH("Hr",I29)-2)&"."&((MID(I29,SEARCH("Min",I29)-3,2))/6)
      Where "1 Hr, 30 Min" is in I29.
      You'll have to work with this to get the results you want in another situation.

  13. Hi,

    Just wanted to let know others, I am able to find the formula (conditional formatting) as below:
    For more than 9 hours: =CONVERT($D2,"day","hr")>216 Fill with color 1
    For more than 10 hours: =CONVERT($D2,"day","hr")>240 Fill with color 2
    For more than 11 hours: =CONVERT($D2,"day","hr")>264 Fill with color 3

    Rgds,

  14. Hi,

    Thanks for the tutorial blog.

    I have a sheet wherein I will be calculating the time spent by my team member.

    Time-in will be enter in column B and time-out in column C, I will be calculating the total time spent in column D by formula =TEXT(c2-b2, "hh.mm").

    I want to highlight the column D with one color, if the time spent is more than 9 hours and with another color, if the time spent is more than 10 hours.

    What formula should I use in Conditional Formatting? Or is there any other way of highlighting the column D cells based on their values.

    Thanks in advance.
    Derok

    • Hi,

      Just wanted to let know others, I am able to find the formula (conditional formatting) as below:
      For more than 9 hours: =CONVERT($D2,"day","hr")>216 Fill with color 1
      For more than 10 hours: =CONVERT($D2,"day","hr")>240 Fill with color 2
      For more than 11 hours: =CONVERT($D2,"day","hr")>264 Fill with color 3

      Rgds,

  15. Hello, Nice Tutorial.
    I have this , 1/3/1900 10:20:29 AM , in a a cell. I want to convert to sec 10:20:29. I don't want the date

    • Stamatis:
      I would use the Text-to-Columns tool and in the third window select the date and the AM portions and click Don't Import option. Then format the data as Time in the Format Cells window.

  16. Sir,
    I want to convert a ten digit number to hh:mm:ss format for eg. 1505475418 to hh:mm:ss

    • Amit:
      I found this explanation and conversions on Excel Tips from John Walkenbach.
      If you import data you might encounter time values stored as Unix timestamps. Unix time is defined as the number of seconds since midnight (GMT time) on January 1, 1970 -- also known as the Unix epoch.

      For example, here's the Unix timestamp for August 4, 2008 at 10:19:08 pm (GMT):
      1217888348

      To create an Excel formula to convert a Unix timestamp to a readable data and time, start by converting the seconds to days. This formula assumes that the Unix timestamp is in cell A1:
      =(((A1/60)/60)/24)

      Then, you need to add the result to the date value for January 1, 1970. The modified formula is:
      =(((A1/60)/60)/24)+DATE(1970,1,1)

      Finally, you need to adjust the formula for the GMT offset. For example, if you're in New York the GMT offset is -5. Therefore, the final formula is:
      =(((A1/60)/60)/24)+DATE(1970,1,1)+(-5/24)

      A simpler (but much less clear) formula that returns the same result is:
      =(A1/86400)+25569+(-5/24)

      Both of these formulas return a date/time serial number, so you need to apply a number format to make it readable as a date and time.

      I've found that the custom format m/d/yyyy hh:mm:ss works pretty well. Be sure to make your cell wide enough to accommodate the size of the value otherwise you'll get ##### displayed in the cell.
      I used the formula =DATE(1970,1,1)+A5/86400
      After I do all of this your number turns out to be 9/15/2017 11:36:58
      If you want just the 11:36:58 part you'll need to copy the 9/15/2017 11:36:58 and Paste Special/Values into another cell and copy the 11:36:58 into another cell. At this point it will be text, so if you want to do a DATEDIF or other calculation you'll need to use the first conversion for that.

  17. we have cumulative overtime data in 45:00:00 format (actually in cell it shows like 01/01/1900 9:00:00 PM)
    I want to convert it in number value like 45 (it must not in time format)

    • Nitin:
      Have you tried to format the cell as a number?
      It sounds like it is formatted as something else.
      If formatting it as a number doesn't work try the custom format [H]:MM:SS

  18. Sir,

    I want to convert time (06:30) to number (0630) in excel.

    • Vikash:
      I think the simplest way to convert a value that is already formatted as time in Excel is to copy the values from Excel and paste them into Word as plain text.
      When they're in Word, replace the ":" with nothing, then copy these numbers and paste them into Excel.
      When they're in Excel, format the cells as Custom format "0000" and you'll see the values displayed as you need them.

  19. Al:
    If you change the formatting to another Time that is included in the Time list, does this solve the issue?

  20. I'm trying to calculate the difference between regular worked and overtime hours (hours over 40)

    I have this formula to calculate the cell of up to 40 hours
    =IF(E36=40,J36-40,0)

    all I get is "0.00" or "####################..."

    HELP!

    I then need to multiply the product of these figures by the hourly wage.

    Thank you

    • Al:
      How is the cell formatted that holds the If statement?
      This looks like a cell formatting issue.

      • Its a custom format [h]:mm

  21. How do I convert 1:45:87 (minutes: second: 100ofsecond)
    The result should be in second ex (105.87)second
    But unable to enter because its automatically takes 1:45:87=1:46:27 please somebody help

  22. Hi hope you will be fine,

    i want to convert number to time format and i used this formula =left(A3,2)&":"&right(A3,2) and its giving me correct time format on below number 1234,1232,3145,

    i want to know how to convert these number exe, 0123,0234,0012,0020,0003.

    kindly help me out in this regard

    • =IF(LEN(A3)>2,LEFT(A3,LEN(A3)-2),"0")&":"&IF(LEN(A3)>1,RIGHT(A3,2),"0"&RIGHT(A3,1))

  23. I’m wanting to display 12:34 as 12.34.

    • Winston:
      Let's say you want the original number in cell A2.
      Before you enter anything into A2 format the cell as text.
      If you want the modified number in B2 then format B2 as text before you enter:
      =SUBSTITUTE(A2,":",".")

  24. I would like to convert "39 hour(s), 6 min(s), 31 sec(s)" to a decimal

  25. Hello Guys
    i want formula that if i put 1430 ,it should convert to 14:30. plz help

    • Aleem:
      There are several ways to do that, here is one:
      Where original number is in A2 enter this into A3:
      =TIME(LEFT(A2,LEN(A2)-2),RIGHT(A2,2),)
      Then format A3 in the time format you want to see.

  26. I want to IN-OUT Time Calculation formula for my company Register in soft format.

    Worker come in 8 Hrs shift = P

    Night + First (next day) = P
    8 Hrs + Duty = P + OT Hrs

    required formula as above condition.

    IN Date IN Time Out Date Out Time Preset OT Hr
    Absent
    01-10-17 6:30 01-10-17 18:30
    01-10-17 22:30 02-10-17 8:30

    • Hello,

      For me to understand the problem better, please send me a small sample workbook with your source data and the result you expect to get to support@ablebits.com.
      Please also don't forget to include the link to this comment into your email.

      I'll look into your task and try to help.

  27. HI Team,

    Please let me know how to convert minutes to hours for example I need to convert 120:33:00 to hours & minutes.

    • Hello,
      For me to understand the problem better, please send me a small sample workbook with your source data and the result you expect to get to support@ablebits.com. Please don't worry if you have confidential information there, we never disclose the data we get from our customers and delete it as soon as the problem is resolved.
      Please also don't forget to include the link to this comment into your email.
      I'll look into your task and try to help.

  28. Please help me I need to change 1.50 to show 1.30, or 1.25 to 1.15 how can I do that

  29. Kindly assist me on how to display 130 minutes as integer in excel program

  30. How do you separate elapsed minutes or seconds with thousands separator? I have calculated times between two dates and custom formatting will not let me separate the minutes or seconds accordingly.

    Thanks

  31. Hi

  32. How to convert "22.91" in Minute and Second?

  33. Question: How to solve Date and Time in Excel formula if start one day and end next day?

    I have issue if I have

    Start time: 7/7/2017 23:28:00 (Time start at evening PM) and
    End time: 7/8/2017 00:00:00 (Time end next day in the morning AM)
    I want to subtract End Time to Start time but not getting correct result.

  34. Hi,

    Some question,
    -I have in line A 2 shifts Morning & Evening( with end & start times)
    - Line B gives my the worked hours for AM & PM( end time - start time)
    - Line C should give me the total hours ( 27 : 00 ) but instead it always give me the time 03:00.

    Any workaround

    A: STU 1 3:00 - 23:00 18:00 - 1:00
    B: TOTAL 20:00 7:00
    C: DAY TOTAL ???03:00?????

  35. Thank you. You saved my day.

  36. Hi Team,

    Am trying to caluculate the time difference in same but am unable to do that, could anyone help me on the same.

    09:00 AM-06:00PM in one cell another i need the number of working hours

    Please suggest me...

  37. Dear Excel user's

    I have entered time for 6.10 mins in Excel (i,e 6 hours and 10 mins) how to i get 310 minutes using the formula Pls help us.

    • Dear Suresh,

      please note that 6 hours and 10 mins is 370 minutes. But if you need 310 minutes exactly and 6:10 is stored in A1, please use the following formula:
      =(A1*1440)-60

  38. when am (70+12)/60 I got answer as 1.20 hours but the correct answer is 1.12 hours how can I 1.12 hours.do u have any formula for than...please reply as soon as possible

  39. hi,
    i wants to calculate over time .our organization start overtime after 30 minutes to the regular time. i am unable to set overtime formula .
    Please guide me an Example ..i am using Excel 2013.
    Best regards,
    Abdul Rehman

  40. Hi,
    i am making attendance sheet and i am unable to get the result when an employee works less then the regular time ,so i need his hours in Negative numbers.please guide me how can i get negative numbers.i am using h:m format in excel 2013.
    Best regards,
    Abdul Rehman

  41. How to Write 15:30 into 15 hours 30 minutes?
    i don't have any format like this in format cell- custom

    • You can write (hh "hours" mm "minutes") in custom window, without the brackets(). I have written it just to make it look different from other text.

  42. How to write 15:30 into 15 hours 30 minutes?

    Thanks in Advance.

  43. I need to convert minutes to individual units
    column A has the date, column B has the start time column C has the end time

    8-22 mins = 1 Unit
    23-37= 2 Units
    38-52 = 3 Units
    53-67 = 4 Units

    The Units are made so you can choose them from a drop box.
    I need it so that the times = the correct number of units, if they enter the wrong units or no units it would highlight. Or else if the time equals 7 mins or less that the time is highlighted. PLEASE HELP

  44. Hi,

    I have a Question for my offical report work.

    i used this formula to =INT(I2-A2) & " days, " & HOUR(I2-A2) & " hours, " & MINUTE(I2-A2) & " minutes and " & SECOND(I2-A2) & " seconds" to get the exact days,hours,min,&sec . in this scenario i need to covert this values into percentage .

    My task time is 5 hours if i exceed the limit the cell wants to show the exact percentage

    eg1 : i received one mail on 22 jan 2017 12:14:20 pm and i replied to that mail on 22 jan 2017 20:41:20 pm . it exceed my task line so could you please help me what formula should i used to solve the issue.

  45. Anyone out there, can you help me, please?

    I am trying to convert 21 hours 36 minutes to a decimal format in Excel, for a part-time weekly timesheet i.e. 21.6 hours, what formula do I need to use to achieve this?

  46. How can I calculate the time into hours?

    Day In Out Regular Hours
    1 7:13am 1:15pm

  47. How would you calculate an end time if the start time is 8am and the hours worked is 6.75?

  48. Hi everyone,
    How can I calculate agricultural land units, I have

    20 Marla=1 Kanal
    8Kanal=1 Acre (i.e. 1 Acre is equal to 160 Marla)

    How to Add, Subtract, Multiply or Divide these units ?
    kindly help

  49. How do I show only values and not "0"
    examples
    Time result 0:03:51 would show as 3:51
    Time result 0:30:10 would show as 30:10
    Time result 0:00:22 would show as :22 or 0:22

    The current cell formula is
    =TIME(N160,Q160*60,P160)
    Thank you

  50. I have data that is formatted in the following manner.

    "22 minutes" where the minutes are written as a number followed by the word "minutes" as well as "1 hr 30 min" where the time is larger than an hour and they are written with a number for the hour followed by "hr" and the a number for the minutes followed by "min". Is there a way to first separate the two different notations and then convert the numbers to a format hh:mm:ss? Any help would be appreciated.

    Thanks!

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