Fix issue with timezones and the whenever gem.

schedule.rb

# schedule.rb

set :output, "/path/to/log/cron.log"

# Requires that your production server is set to UTC time
# Subclass Time and override self.parse to adjust for timezone offset
class TimeInZone < Time
  def initialize
    super
  end

  def self.parse args, utc_offset = 0
    hours = 3600 # seconds in hour
    super(args) - (hours * utc_offset)
  end
end

LOCAL_TIME_ZONE_OFFSET = -7  # Set default offset

# Add helper method to DRY up the cron tasks
def local time, utc_offset = LOCAL_TIME_ZONE_OFFSET
  TimeInZone.parse(time, utc_offset)
end

# Cron tasks here
every 1.day, at: local('5:00 am') do
  rake "example:task"
end