noizumi@silverfox:~$ sudo service gpsd start
noizumi@silverfox:~$ ntpq -p
remote refid st t when poll reach delay offset jitter
==============================================================================
*SHM(0) .GPS. 0 l 4 16 177 0.000 1.359 9.931
LOCAL(0) .LOCL. 6 l 15h 64 0 0.000 0.000 0.000
ntp.nict.go.jp .POOL. 16 p - 64 0 0.000 0.000 0.004
ntp.jst.mfeed.a .POOL. 16 p - 64 0 0.000 0.000 0.004
s2csntp.miz.nao .POOL. 16 p - 64 0 0.000 0.000 0.004
ntp.ring.gr.jp .POOL. 16 p - 64 0 0.000 0.000 0.004
#x.ns.gin.ntt.ne 249.224.99.213 2 u 2028 512 44 22.854 0.359 0.333
#ntp-5.jonlight. 133.243.238.243 2 u 1796 512 4 22.958 -0.892 0.474
+61.114.187.55 ( .PPS. 1 u 279 512 377 22.818 -0.701 0.455
+time1.google.co .GOOG. 1 u 157 512 377 53.408 -0.355 0.766
+time2.google.co .GOOG. 1 u 497 512 377 55.005 0.369 1.280
+time4.google.co .GOOG. 1 u 273 512 377 53.236 -0.602 0.163
+kuroa.me 141.32.131.246 2 u 511 512 375 30.312 -1.825 0.518
+203.178.135.73 103.1.106.69 2 u 1065 512 376 21.122 -1.449 20.575
-extendwings.com 133.243.238.243 2 u 40 64 375 22.022 10.335 10.877
+ntp-a2.nict.go. .NICT. 1 u 400 512 377 21.561 -0.832 0.664
+time3.google.co .GOOG. 1 u 337 512 377 53.321 -0.925 0.403