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Excel: calculate period between dates
论题张贴者: Samuel Murray
Samuel Murray
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Nov 17, 2021

Hello

Suppose I have two columns of dates & times in Excel, how can I calculate the time difference between the two columns?

So, cell A1 = "28/01/2011 17:57" and cell A2 = "01/07/2011 11:14". According to an online calculator, the time difference is 154 days 17 hours 17 minutes.

I don't care in what format the answer is given: days/hours/minutes, hours/minutes, hours, minutes, seconds, etc., as long as I can see the difference.

I tried convert... See more
Hello

Suppose I have two columns of dates & times in Excel, how can I calculate the time difference between the two columns?

So, cell A1 = "28/01/2011 17:57" and cell A2 = "01/07/2011 11:14". According to an online calculator, the time difference is 154 days 17 hours 17 minutes.

I don't care in what format the answer is given: days/hours/minutes, hours/minutes, hours, minutes, seconds, etc., as long as I can see the difference.

I tried converting the dates to computer time (you know, offset from 1970) but could not figure out how.

Thanks
Samuel ▲ Collapse


Mihai Badea (X)
 
Tomasz Sienicki
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A simple subtraction Nov 17, 2021

=A2-A1

…works for me.

Thomas T. Frost
 
Michael Davies
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Excel: Time difference between 2 dates/times Nov 18, 2021

You can find 2 different methods for this calculation at the following URL:

https://support.microsoft.com/en-us/office/calculate-the-difference-between-two-times-e1c78778-749b-49a3-b13e-737715505ff6

Regards,

Michael
 
Daryo
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Differences in resolution .... Nov 18, 2021

Samuel Murray wrote:

Hello

Suppose I have two columns of dates & times in Excel, how can I calculate the time difference between the two columns?

So, cell A1 = "28/01/2011 17:57" and cell A2 = "01/07/2011 11:14". According to an online calculator, the time difference is 154 days 17 hours 17 minutes.

I don't care in what format the answer is given: days/hours/minutes, hours/minutes, hours, minutes, seconds, etc., as long as I can see the difference.

I tried converting the dates to computer time (you know, offset from 1970) but could not figure out how.

Thanks
Samuel


converting time from an Excel cell to computer time might require some serious tinkering: the operating system counts time in milliseconds (or even with a 100ns resolution), Excel time is counted by whole seconds.

Even the simple "time difference between 2 Excel cells" is not always so "simple" - you have to be careful not to get results with a meaningless precision.
 
Platary (X)
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Timestamp Nov 18, 2021

Samuel Murray wrote:

I tried converting the dates to computer time (you know, offset from 1970) but could not figure out how.



Have a look here : https://www.epochconverter.com/

In Excel (2016) it corresponds to = (Cellwithhumandate-DATE(1970;1;1))*86400

Could be different formulas, I use this one when needed.

Hope this helps!
 


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Excel: calculate period between dates






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