3pm - Sunday 7th September.
You may be aware of the Public Alerts that the Government will send out to all smartphone users this Sunday the 7th September. Please note this one is a TEST. Whether your phone is silent or not, it will vibrate and have a loud warning tone for 10 seconds; it may even read out the alert, depending on which phone you have. If you have a second phone for personal safety, turn this phone off for the duration of this test to prevent the alarm from activating.
When you get an alert, stop what you’re doing and follow the instructions in the alert.
If you have a vision or hearing impairment, audio and vibration attention signals will let you know you have an emergency alert if accessibility notifications have been enabled on your mobile phone or tablet.
You can read more about the alert here