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@marcelotmelo
Last active March 7, 2021 07:01
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^([0-9]+)-(0[1-9]|1[012])-(0[1-9]|[12][0-9]|3[01])[Tt]([01][0-9]|2[0-3]):([0-5][0-9]):([0-5][0-9]|60)(\.[0-9]+)?(([Zz])|([\+|\-]([01][0-9]|2[0-3]):[0-5][0-9]))$
@webmaster128
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@heraclesdev, first of all, pattern is a very misleading name herer. A pettern is what you put as a string into new RegExp(...) Better call it searchstring.

You likely get false because "^" and "$" in the RFC3339 pattern mark beginning and end of the string. I.e. "2019-04-28T06:14:50.142Z" will match but "it is 2019-04-28T06:14:50.142Z" will not.

@Zaijo
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Zaijo commented Sep 13, 2017

Hi @jy95 ! Your shortened regex is not correct. It's missing "T" or "t" between date and time representation.

This is the corresponding part of grammar that says it:
date-time = full-date "T" full-time

https://www.ietf.org/rfc/rfc3339.txt

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