Hello there! Thanks for asking this question. The date and time on the Oculus headset, is set up from the phone's date and time at the time of the headset being set up. This means that the Oculus headset itself, does not recognize the time change. To adjust this you will need to factory reset the headset and set up with a phone that is set to the correct time. To perform a factory reset you can find the steps here. If that doesn't help please submit a support ticket and kindly include all of the troubleshooting steps that you have tried.