When do the audience tab synced dates get updated?

On the Mailchimp Audiences tab, you'll find two distinct areas that display synchronisation details: the 'Last Synced' timestamp and the 'Synced' column within the audience table. Each of these indicates the timing of the most recent sync operation. However, it's important to note that if you initiate a manual update by clicking the 'Refresh' button, the process will execute and complete successfully, but these timestamps will not reflect this recent activity.