Introduced capability to derive system timezone from U-Boot's 'timezone' environment variable, ensuring persistence.
Added a new utility, timezone.sh, located in /usr/sbin.
Updated /etc/rcS to invoke timezone.sh, guaranteeing the updated timezone settings are accessible to all programs and scripts during boot.
This change was implemented to provide users with a more resilient and flexible approach to timezone management, especially in scenarios where system overlays might be frequently modified or reset.