Is anyone having the issue of the date just changing randomly to June 2000. That keeps happening for me and I turn off and then turn back on automatic date and time and it goes back to the proper date but then randomly switches back to June 2000. This started yesterday while on the last beta update for the G960U1 and it is still doing it on the official Android 10 release. Any help is appreciated.
Have you verified you are set to the correct Time Zone in the Settings? Another step would be to clear the cache partition of the phone.
My phone has been doing this also. I actually just upgraded my phone from the Note 9 to the G20+ and it's still doing it. This problem has been going on for some time now as it was changing to 1999 back closer to the beginning of this year and since the 2020 new year it's been switching to September 2000.
I've been having the same issue since two updates ago. I was hoping the last system update I performed last night would have fixed the problem, but it didn't.
I live in a dead-spot, so the only reliable internet connection I have is through WiFi. When the internet through the WiFi gets congested or has some sort of issue, the time on the phone reverts to September of 2000.
I tried wiping the cache partition like SamsungRei suggested, but it did not fix the problem.
Phone is a Samsung S10 5G 512GB Verizon, purchased in October 2019.
Edit: One other thing I've noticed is that OP mentioned that his/her time was reverted to June of 2000, which is 3 months prior to September of 2000 which is when my date is reverting to. Yesterday, my date kept getting reverted to Sept. 29th, and today it reverted to Sept. 30th. It seems to be going backwards exactly 7168 days (19 years, 7 months, 16 days).
Another annoyance, I keep turning the automatic date/time feature off while this problem persists, and even that keeps turning back on.
This just happened again to me, but this time, in the middle of a call. This caused the phone to drop/end the call. Again, the automatic date/time setting was re-enabled and my time went back to Sept. 30, 2000.