Feature Request: Support to set Timezone Parameter

[Noschvie]

Parameter for #localtime and #timezone would be fine to have the same date/time as the Uptime-Kume container.

    volumes:
      - /etc/localtime:/etc/localtime:ro
      - /etc/timezone:/etc/timezone:ro

# Add support tools
RUN apk update && apk add --no-cache tzdata