Rubocop complains about DateTime#to_time

[MatheusRich]

Expected behavior

Rubocop should not complain about to_time on DateTime objects, since they do know about the timezone.

Actual behavior

Rubocops raises the error Do not use 'to_time' on Date objects, because they know nothing about the time zone in use. (convention:Rails/Date)

Steps to reproduce the problem

date = DateTime.current
time = date.to_time

puts time

RuboCop version

bundle exec rubocop -V
0.82.0 (using Parser 2.7.1.4, running on ruby 2.7.1 x86_64-linux)

[andyw8]

If this is indeed the case, then the style guide should also be updated:

https://github.com/rubocop-hq/rails-style-guide#to-time

[derikson]

The style guide refers to String#to_time only. Even Date#to_time knows about timezones.