The PrevailingTimezone code list is used by the following fields: DeliveryScheduleSettlTimezone(41048) LegDeliveryScheduleSettlTimezone(41419) UnderlyingDeliveryScheduleSettlTimezone(41767) StreamCommoditySettlTimezone(41291) LegStreamCommoditySettlTimezone(41688) UnderlyingStreamCommoditySettlTimezone(42004)