enum MtasChargingTimeZoneSourceDT

Numeric Enumeration: 0-1 (0=TIMEZONE_FROM_PROVISONED_DATA, 1=TIMEZONE_FROM_PANI_OR_PROVISONED_DATA)

References from:
MtasCharging;

0
TIMEZONE_FROM_PROVISONED_DATA
User Home Time Zone from User Common Data.
1
TIMEZONE_FROM_PANI_OR_PROVISONED_DATA
Timezone is selected in the following order, if present:
1) "local-time-zone" and "daylight-saving-time" parameters in the network provided P-Access-Network-Information header.
2) User Home Time Zone from User Common Data.