Basic services such as the App Store, iCloud, email, and browsing the web via Safari or Chrome will stop working.
The GPS rollover issue occurs once every 19 years and is rooted in how long GPS devices can hold dates.
You can update your iPhone or iPad wirelessly by going to Settings, tapping General and then Software Update.
Fortunately this should only apply to a small number of users - the iPhone 5 launched back in September 2012.
The rollover began happening for some systems in April this year, when widely used GPS components from U.S. conglomerate Honeywell rolled over, leading to the temporary grounding of Bureau of Meteorology weather balloons and some Boeing aeroplanes.
From what's now understood, fourth-generation iPads are also affected by the change although the only functionality that'll be affected is Global Positioning System. "Affected Apple devices are not impacted until just before 12:00 a.m. UTC on November 3, 2019".
Apple rolled out its iOS 13 software last month and although it is packed with an array of changes, such as picture editing, menstrual tracking and improved privacy features, it has also come along with a few bugs.
Just six days after the launch of iOS 13, Apple released its first major update for the operating system - iOS 13.1. Phones is laggy and running hot. Used to have a great phone that would last me the day.
Over-the-air software updates will immediately become unavailable too, although there is a solution to this one.