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I'm trying to count how many entries with a particular timestamp or range are in my table and although it’s pretty simple, I cannot find the proper way to do that.

Example data:

9/12/2011 11:08:40
4/23/2012 8:09:22
4/23/2012 8:11:55

What I want to calculate is how many entries were made in 2011 and how many in 2012.

I tried to make some string checks with countif, like countif(A:A, "*/2011*"), but it does’t work.

I also tried to use the YEAR() function this way: countif(A:A, year(A)="2012"), but it returns 0.

What am I doing wrong?

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up vote 3 down vote accepted







If you use the QUERY formula without the INDEX, then a header will appear as well.

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Thank you ! i eventualy found this solution : count(filter(A:A,YEAR(A:A)=2012)) which works prety well, i've even be able to build on top of it to make some sum on other cell. I realy need to dig into this ARRAYFORMULA thing. – d.zOid Apr 16 '13 at 8:36

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