If you enabled the Temporal feature of Vantage and want to set the TimeZoneString, you can enter one of the following:
GMT GMT+1 GMT+10 GMT+11 GMT+11:30 GMT+12 GMT+13 GMT+14 GMT+2 GMT+3 GMT+3:30 GMT+4 GMT+4:30 GMT+5 GMT+5:30 GMT+5:45 GMT+6 GMT+6:30 GMT+7 GMT+8 GMT+8:45 GMT+9 GMT+9:30 GMT-1 GMT-10 GMT-11 GMT-2 GMT-3 GMT-4 GMT-5 GMT-6 GMT-6:30 GMT-7 GMT-8