-uncertainty on the clock measurements, in (1/freq) units. The "offset"
-field indicates the offset from POSIX.1 Epoch, 1970-01-01 00:00:00 +0000
-(UTC), to the zero of value of the clock, in (1/freq) units. If the
-"offset" field is not present, it is assigned the 0 value.
+uncertainty on the clock measurements, in (1/freq) units. The "offset_s"
+and "offset" fields indicate the offset from POSIX.1 Epoch, 1970-01-01
+00:00:00 +0000 (UTC), to the zero of value of the clock. The "offset_s"
+field is in seconds. The "offset" field is in (1/freq) units. If any of
+the "offset_s" or "offset" field is not present, it is assigned the 0
+value. The field "absolute" is TRUE if the clock is a global reference
+across different clock uuid (e.g. NTP time). Otherwise, "absolute" is
+FALSE, and the clock can be considered as synchronized only with other
+clocks that have the same uuid.
+