Suppress inappropriate error when trying to schedule mailing for today
When trying to schedule a mailing, there are two fields: one for date and one for time. If you select today for date a popup error immediately says that 'Error The scheduled date and time is in the past'. It would be better if this was delayed somewhat, though there are many possibilities. User ends up thinking Civi doesn't know correct date.
How about if validation changed so that if date==today and time is null, then set time=now()+1 minute?