• Two dates, the bounds of a date range;
  • A list of dates (given in-extenso in a line or a column);

Is there a way, in Google Spreadsheet, to get the number of dates (days) in the date range that are included in the list of dates ?


[2017-01-01;2017-01-31] intersected with {2017-01-01, 2017-03-01} would yield 1

Because the range on the left hand side, seen as a set, contains the 31 days of January {2017-01-01, ..., 2017-01-31} and the set on the right hand side contains the date 2017-01-01, which is a day of January.


Assume that:

A1: Holds the start date
A2: Holds the end date
Column B holds the list of dates to count

  "select COUNT(B) where B >= date '"&
  "' AND B <= date '"&
  "' label COUNT(B) ''"
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  • Works, thanks, just had to replace commas with semi-colons. – Cans Apr 9 '17 at 10:26

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