Wonkiness in todate() and how to validate incoming dates

RE: Wonkiness in todate() and how to validate incoming dates

stevenh6272 — Thu, 20 Nov 2025 19:12:40 GMT

last I knew leap year is when (year mod 4) == 0 except when (year mod 100) = 0.... I think there others beyond this but I doubt our app will still be running after Y2100.

RE: Wonkiness in todate() and how to validate incoming dates

stevenh6272 — Thu, 20 Nov 2025 19:10:59 GMT

Ok. Thank you.

RE: Wonkiness in todate() and how to validate incoming dates

Stefan Helzle — Thu, 20 Nov 2025 19:07:58 GMT

I do not know of anything built in. Maybe there is a plugin. But even date is tricky with all the leap year logic.

RE: Wonkiness in todate() and how to validate incoming dates

stevenh6272 — Thu, 20 Nov 2025 18:29:10 GMT

Is there anything built in for this or do I need to craft the rules from scratch? Date rules aren't too hard.

Timestamp rules would be untenable. How in the world would I validate leap seconds? Good thing I don't need this.

RE: Wonkiness in todate() and how to validate incoming dates

Stefan Helzle — Thu, 20 Nov 2025 18:26:46 GMT

What should happen if the date is not good? Throw an error which you cannot catch? I think that you will to have validate the values as long as you can. In your situation, this means the intermediary dictionary.