Airtable formula to convert X calendar dates into number of days

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#1

Hello,

I want to calculate the number of days of a mission,

  • either from a period of time with beginning and end dates - which I can do with the [ DATETIME_DIFF() function]

  • or (and this is where I have an issue), from a list of specific dates. I want to make the sum of theses days. What is the formula for that please?

#2

Hi @Elodie_Delneuf and welcome to the community!

I’m assuming that this is a selection field and thus outputs a text, rather than a date. If that is the case, you could try using DATETIME_PARSE() in combination with a DATETIME_DIFF().

#3

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