Yes! If you're sending a document for signing that mustn't be signed after a specific moment, you can specify the exact time and date that the case will expire. Enter the fixed date and time formatted as yyyy-mm-dd hh:mm in Central European Time (CET).
You can also set a time frame (a certain number of days).
These settings are made under Signing deadline in the settings for your case. The settings can also be made to a template.
Note that the deadline is absolute, and that no party will be able to sign the case after the period has expired. If you choose to make changes because one or more parties have not signed, any signatures will disappear and can not be restored.