[Skunkworks] Clock auto-sync

Lately, my phone clock resets to the CURRENT time, even after a MANUAL change - say 15minutes ahead. Anyone else experiencing this? Before the "china-phone-lockdown", the clock retained the manually set time - ahead or behind, and never changed. After the china-phone-lockdown, the clock syncs every so often - I've found it happens after about 3 minutes AFTER a MANUAL setting. NO, my phone does NOT have an AUTO-SYNC feature (yes, it's THAT old, the manufacturer doesn't even exist anymore). Those who know much, much more, is this a feature that can be implemented by the network - OTA maybe?