javascript regex iso datetime

Question

does anyone have a good regex pattern for matching iso datetimes?

ie: 2010-06-15T00:00:00

Answer 1

yyyy-MM-dd

Too much explanation for most of the answers here, here's a short variation of @Sergey answer addressing some weird scenarios (like 2020-00-00), this RegExp only cares about the yyyy-MM-dd date:

// yyyy-MM-dd
^\d{4}-([0][1-9]|1[0-2])-([0-2][1-9]|[1-3]0|3[01])$

Also this one doesn't care about the number of days per month, like 2020-11-31 (because November has only 30 days).

My use-case was to convert a String into a Date (from an API param) and I needed only to know that the input string didn't contained strange stuff, I do the next validation against an actual Date object.