Some GPS receivers may malfunction on or after April 6
If you rely on GPS then make a note of 6 April 2019 in your calendar because
it's the date that the GPS Week Rollover occurs, and it could cause some GPS
receivers to malfunction.
https://www.zdnet.com/article/some-gps-receivers-may-malfunction-on-or-after-april-6/
Fun fact: GPS uses 10 bits to store the week. That means it runs out... oh heck
– April 6, 2019
https://www.theregister.co.uk/2019/02/12/current_gps_epoch_ends/