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12 NMEA-0183 Output
140 5700 GPS Receiver User Guide
Reference
ZDA UTC Day, Month, And Year, and Local Time Zone Offset
An example of the ZDA message string is shown below. Table 12.12
describes the message fields.
$GPZDA,172809,12,07,1996,00,00*45
Fields 5 and 6 together yield the total offset. For example, if field 5 is
–5 and field 6 is +15, local time is 5 hours and 15 minutes earlier than
GMT.
Table 12.12 ZDA message fields
Field Meaning
1UTC
2 Day, ranging between 01 and 31
3 Month, ranging between 01 and 12
4Year
5 Local time zone offset from GMT, ranging from 00 to ±13 hours
6 Local time zone offset from GMT, ranging from 00 to 59 minutes