Problem/Motivation
The date_popup field types do not currently support a #date_format where there is no space between hours:minutes and the am/pm indicator.
When you try to save a date, you get the following message:
The value input for field Expiration date for Alert is invalid:
The value 11-17-2021 11:00 AM does not match the expected format.
Steps to reproduce

Proposed resolution
Add a space between hour:minute and am/pm on the date format in site_alert module:
- $format = 'm-d-Y h:iA';
+ $format = 'm-d-Y h:i A';
Remaining tasks
User interface changes
API changes
Data model changes
Comments
Comment #2
jwilson3Patch adds a space between hour:minute and am/pm on the #date_format setting in site_alert module:
.
Comment #3
jwilson3