This behavior usually occurs when the device does not have access to the Internet: at boot, Android tries to connect to google.com to verify the connectivity. If this step fails, Android does not connect to the NTP server and retrieve the time & date, and it reverts back to the factory timestamp, 2024-10-18 18:46.
To fix this, make sure that the device is connected to the Internet. If the device displays "No Wifi", refer this article for possible solutions: The Wifi is disabled (no network) when I boot the device
Note
If you are using Genymotion Desktop with QEMU (Linux, macOS), this may occur when using quick boot. Try a coold boot instead. See Genymotion Desktop on-line documentation.