When are lifecycle management rules applied?

The expiration & transition rules are evaluated every day at midnight UTC, but the actual action might take between one minute and twenty-four hours* after evaluation.

For example, a user wants to configure a lifecycle rule that moves an object after two days to Glacier:

• Lifecycle Rules are checked everyday at midnight.
• The user uploaded a file on April 6th, at 2:00 pm UTC.
• The rule is triggered on April 8th, at 11:59 pm UTC.
• The application of the rule can take up to 24 hours
  ⇒ The object will be transferred to Glacier no later than 11:59 pm UTC on April 9th.

* Please note that when a LifeCycle rule is set for a very large amount of Objects (several 100000s) simultaneously, the rule might take longer to be applied.