# Expiration Date Parameters

**--expiration** <<**on**|**off**>|**date:**<*yyyy-MM-ddThh:mm:ss*>|**time-check:**<*seconds*>|**offline-time:**<*seconds*>|**time-server:**<*url*>|**note:**<*text*>>

Expiration date parameters:

**on**|**off:** Enables or disables expiration date checking.

**date:** Sets a date and time when the virtual machine usage period expires (e.g., 2024-12-31T20:30:00).

**time-check:** Sets how often (in seconds) Parallels Desktop contacts the time server to check the expiration date and time.

**offline-time:** Sets the time period (in seconds) during which a user can work with the virtual machine if Parallels Desktop is unable to check the expiration date and time.

**time-server:** Specifies the URL of a trusted time server to check the expiration date and time.

**note:** Adds a note (e.g., system administrator contact info).


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