In this test run, the logger time stamps rolled over after 18:12:15.985:
18:12:15.825;I;$POSMGYR,110,162,284_5A
18:12:15.825;I;$POSMACC,-15744,-816,224_54
18:12:15.825;I;$POSMVCC,5214_79
18:12:15.771;B;$GPGLL,4330.2656,N,01450.6519,E,013138,A
18:12:15.861;B;$GPGGA,013138,4330.2656,N,01450.6519,E,1,10,1.5,2,M,37,M,,
18:12:15.985;B;$GPVTG,,T,251.6,M,3.3,N,6.1,K
00:00:00.050;B;$GPZDA,013138,22,06,2014,0,0
00:00:00.112;B;$GPRMC,013138,A,4330.2656,N,01450.6519,E,3.3,254.6,220614,3,E_6D
00:00:00.249;B;$GPRMB,A,9.99,R,START ,CURSOR,4347.805,N,01553.345,E,48.8,68.5,-3.3,A_77
00:00:00.827;I;$POSMGYR,38,0,-67_76
00:00:00.827;I;$POSMACC,-16460,-136,-120_73
00:00:00.826;I;$POSMVCC,5214_79