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DateTime comparison in Rails 6

Ethan Lee-Tyson asked in Rails

Hi -

I built this simple app to practice with ActionMailer as I learn Rails (LINK:

It works fine locally but when I deployed to Heroku, it seems that the datetime comparison in the messages controller's create action is not working properly.

Here is the messages controllers (LINK: -- I keep hitting that 2nd flash notice ("invalid delivery time...") even when I input a datetime in the future.

Any suggestions for how to debug?

Other relevant links:

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