The RCPP command to enable/ disable the privacy masks is CONF_PRIV_MSK_POLY - 0x0bd8. Follow this article to see the rcpp command to enable & disable the privacy mask of a Bosch camera (moving or fixed).
In order to determine the Time Zone values, perform the bit mask operation of the flag value with the combined bit mask value 0x1F800000 as shown below. Bits 23-28 correspond to the Time Zone bits in the Flags.