Digital cellular telecommunications system (Phase 2+) (GSM); Universal Mobile Telecommunications System (UMTS); LTE; Network Identity and TimeZone (NITZ); Service description; Stage 1 (V15.0.0; 3GPP TS 22.042 version 15.0.0 Release 15)
The present document describes the feature Network Identity and Timezone (NITZ). This feature provides the means for serving PLMNs to transfer current identity@ time@ Daylight Saving Time and the local timezone to Mobile Stations (MS)s@ and for the MSs to store and use this information. This enhances roaming by permitting accurate indication of PLMN identities that are either newer than the Mobile Equipment (ME) or have changed their name since the ME was sold. Additionally time@ Daylight Saving Time and timezone information can be utilised by MEs as desired.