To schedule a Plan build using a Cron expression:

1. Navigate to the repository settings for desired Plan, as described on Specifying the Source Repository for a Plan.
2. In the 'Build Strategy' field, select 'Cron Based Scheduling' (see screenshot below).
3. The 'Schedule' field will display the last configured schedule, e.g. 'Each Sunday, Wednesday and Saturday every 30 minutes from 1:00 am to 2:00 am'. Click the edit icon () next to this value to display the Schedule Editor.
4. In the Schedule Editor (see screenshots below), select the type of build schedule that you want to configure for your Plan:
   • 'Daily' — Build runs at specified intervals during the day, every day. For example, daily every 3 hours from 12:00am to 9:00am.
   • 'Days per Week' — Build runs at specified intervals during the day, on specified days of the week. For example, each Sunday and Saturday every 3 hours from 12:00am to 9:00am.
   • 'Days per Month' — Build runs at a specified time during the day, on specified days of the month. For example, the second Sunday of every month at 5:00 am
   • 'Cron' — Use a Cron expression to specify when the build will be run. A cron expression consists of 6 mandatory and one optional field. The fields in sequential order are: seconds, minutes, hours, day-of-month, month, day-of-week and (optional) year. For example, 0 0 1 ? * 1#2. For information on Cron expressions, see this FAQ: How do I construct a cron expression in Bamboo?
5. 「保存」ボタンをクリックします。

Screenshot above: Plan Configuration — Build Strategy: Cron Based Scheduling

Screenshots: Scheduling polling for changes