You saying 48hrs in help docs, not possible. Only 24hrs. Please help!

You saying 48hrs in help docs, not possible. Only 24hrs. Please help!

I would like to change it to 48 hrs, but not possible.

In article stated 48 hrs: https://help.zoho.com/portal/en/kb/desk/for-administrators/multi-channel-support/im/articles/setting-your-instant-messaging-preferences