Glitch with =ROUNDDOWN function?

jdpro

Board Regular
Joined
May 1, 2016
Messages
82
Office Version
  1. 365
Platform
  1. MacOS
In a little sheet I have stats that update ages and anniversaries. One of the ages was supposed to turn over today, but it didn't.

Screen Shot 2022-01-18 at 9.03.57 AM.png

If I change the year to 1967, the age reads correctly. I have tried multiple past decades. Some turn over as expected, and others do not. 1907 works. 1917 doesn't. 2017 doesn't work. 2007 does.

Screen Shot 2022-01-18 at 9.07.41 AM.png

Screen Shot 2022-01-18 at 9.42.23 AM.png

If I change the date to 1/17/57 it will show a correct age for the year. So maybe tomorrow the age will be correct. But it really should change today, right?

Screen Shot 2022-01-18 at 9.27.39 AM.png

I have tried changing the date format but it doesn't seem to make a difference. Could someone please help with this or help me understand why it's doing this? Maybe it's just a glitch in Excel. Thank you so much.
 

Attachments

  • Screen Shot 2022-01-18 at 9.27.18 AM.png
    Screen Shot 2022-01-18 at 9.27.18 AM.png
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Excel Facts

Square and cube roots
The =SQRT(25) is a square root. For a cube root, use =125^(1/3). For a fourth root, use =625^(1/4).
I suspect it's because there are no exactly 365.25 days in a year.
Try
Excel Formula:
=DATEDIF(C3,TODAY(),"y")
 
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