Thanks.Quite important for timing issues, to do with position information as I understand it.
For example it may cause the receiver issues with interpretation of the GPS satellite almanac which the receiver downloads, telling it where to expect to “see” the birdies and which ones are healthy or out of service.
Very accurate system time is also needed to calculate absolute position, so the actual calculated position may be significantly out. It may cause issues with correction services for the same reasons.
A good informative post
Hope mine are OK then.