Checks that a field value contains a valid datetime in the specified format
This validator checks that a field value contains a valid datetime in the specified format. It is good practice to specify the format using the translation operator, in order to support different formats in different locales.
requires = IS_DATETIME(format=T('%Y-%m-%d %H:%M:%S'),
error_message='must be YYYY-MM-DD HH:MM:SS!')
# The following symbols can be used for the format string (this shows the symbol and an example string):
