Rounding time to nearest minute or quarter hour etc. [formulas]

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The other day, I was building a spreadsheet to calculate FTE (full time equivalent) for staff based on hours worked on various days in a fortnight. While building the spreadsheet, I came across an interesting problem. Rounding Time to nearest minute.  We can’t use ROUND() or MROUND() to round time as these formulas aren’t designed to work with time values. Although time values are technically decimal, rounding time to nearest minute (or quarter hour etc.) can be tricky when usual round formulas. Let me share a few formulas to round time to nearest point.

round-time-in-excel

Let’s say you have a time value (either user input or calculated) in cell A1.

Use below formulas to round time in A1.

Nearest second: =TIME(HOUR(A1), MINUTE(A1), SECOND(A1)).

  • SECOND formula rounds up any fractions and returns full seconds.

Nearest 15 seconds: =TIME(HOUR(A1), MINUTE(A1), MROUND(SECOND(A1),15))

  • Use MROUND() to round up seconds values to nearest multiple of 15 (or whatever else)

Nearest Minute: =TIME(HOUR(A1), MINUTE(A1)+(SECOND(A1)>30),0)

  • The seconds value will always be zero. We just look at fractional minutes portion to see if they are more then 30 to round up to next minute. The trick is to add up Boolean check (SECOND(A1)>30) to minutes value.

Nearest 15 minutes: =TIME(HOUR(A1), MROUND(MINUTE(A1)+SECOND(A1)/60,15),0)

  • This one uses MROUND to round total mins (including fraction) to nearest multiple of 15.

Nearest 37th minute: =TIME(HOUR(A1), MROUND(MINUTE(A1)+SECOND(A1)/60,37),0)

  • Same logic. Just to show you how to round to an arbitrary minute.

Nearest hour: =TIME(HOUR(A1) +((MINUTE(A1)+SECOND(A1)/60)>30),0,0)

  • Check if total minutes is greater than 30 and add the result to hours.

Time for some home work

Let’s test your timing skills. Assuming A1 has date & time value (like 26-Jun-2017 7:21:32 AM), round it up to nearest working hour.

  • The working hours are 9AM to 6PM on weekdays (Monday – Friday)

Post your answers in the comments section. Tick tock, tick tock… time is ticking, post your answers.

Time to polish your skills

Always having a hard time working with times in Excel? Its high time you took some time to learn about Excel time.

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11 Responses to “Use Alt+Enter to get multiple lines in a cell [spreadcheats]”

  1. Ketan says:

    @Chandoo:
    One more useful trick.......
    In a column you have no. of data in rows and need to copy in the next row from the previous row, no need to go for the previous rows but entering Alt + down arrow, you will get the list of data, (in asending order), entered in the previous rows...

  2. Jorge Camoes says:

    This is another great tip. I use this all the time to make sense of some *very* long formulas. As soon as the formula is debugged I remove the break.

  3. Tony Rose says:

    Great tip Chandoo!

    I use this feature often and it has even gotten the, "how did you do that" response.
    Thanks!

  4. Chandoo says:

    @Ketan: Alt+down arrow is an awesome tip. I never knew it and now I am using it everyday.

    @Jorge, Tony: Agree... 🙂

  5. how can we merge a two sheet.

  6. yan says:

    excellent idea. Chandoo you are genious

  7. Hi chandoo,
    I have used ctrl+enter to break the cell. But I did not get the result.

    Please tell me how can i break the cell in multiple lines.
     

  8. Yasir says:

    hi Chandoo....
    how we can use Alt+Enter in multiple rows at the same time please reply hurry i have lot of work and have no time and i m stuck in this. 🙁

  9. Ahmad B. Al-Qadeeri says:

    Alt+J worked once 🙁
    So I found another more reliable way:
    =SUBSTITUTE(A2,CHAR(13),"")
    Where A2 is the cell that contains the line breaks which the code for it is CHAR(13). It will replace it with whatever inside the ""

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