class Date
  
  def to_timezone
    @day_start_timezone ||= ActiveSupport::TimeWithZone.new( nil, Time.zone, Time.utc( self.year, self.month, self.day ) )
  end
  
end

class DateTime
  LOG_TIME_FORMAT = "%a %Y-%m-%d %H:%M:%S"
  DB_TIME_FORMAT = "%Y-%m-%d %H:%M:%S"
  
  # Format date and time for log timestamp
  def ltf
    strftime(LOG_TIME_FORMAT)
  end

  # Format date and time for SQL
  def dbf
    strftime(DB_TIME_FORMAT)
  end
end

class Time
  LOG_TIME_FORMAT = "%a %Y-%m-%d %H:%M:%S"
  DB_TIME_FORMAT = "%Y-%m-%d %H:%M:%S"
  
  # Format date and time for log timestamp
  def ltf
    strftime(LOG_TIME_FORMAT)
  end

  # Format date and time for SQL
  def dbf
    strftime(DB_TIME_FORMAT)
  end
end

if defined? ActiveSupport::TimeWithZone
  class ActiveSupport::TimeWithZone
    LOG_TIME_FORMAT = "%a %Y-%m-%d %H:%M:%S"
    DB_TIME_FORMAT = "%Y-%m-%d %H:%M:%S"
  
    # Format date and time for log timestamp
    def ltf
      strftime(LOG_TIME_FORMAT)
    end

    # Format date and time for SQL
    def dbf
      strftime(DB_TIME_FORMAT)
    end
  end
end