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Acutime 2000 Synchronization Kit User Guide C-11
C NMEA 0183
C.4.7 ZDA – Time & Date
The ZDA message contains UTC, the day, the month, the year and the
local time zone.
$GP ZDA,hhmmss.s,xx,xx,xxxx,,*hh
<CR><LF>
!
Note – Fields #5 and #6 are null fields in the Acutime 2000 output. A
GPS receiver cannot independently identify the local time zone
offsets.
"
Caution – If UTC offset is not available, time output will be in
GPS time.
!
Note – GPS time can be used as a time tag for the 1 PPS. The ZDA
message comes out 100–500 msec after the PPS.
Table C-9 ZDA – Time & Date Message Parameters
Field # Description
1UTC
2 Day (01 to 31)
3 Month (01 to 12)
4 Year
5 unused
6 unused
hh Checksum