GP UWL always shows Tomorrow as Due Date

Hello Experts,

Iam facing a strange issue in GP UWL inbox. I have set up the Due date as one day for an action. If I get a task today into my inbox, UWL shows Sent Date as Today and Due date as Tomorrow. Iam also sending the notification after day and iam getting notified after a day if I do not take any action on that task. The issue is Due is shown as Tomorrow even after couple of days. But, If I go to Runtime and check Alerts/Warning Iam seeing the correct due date.

Does any one have any idea what is causing this issue? Please suggest.

Thank You,

Nidhi.