dump time log
				2018-03-05T17:31:10.788Z inf elmgr/1270 cts-poll {
				"data": {
				"delta": -15.683,
				"ip": "",
				"slop": 1.1539999999999999,
				"stratum": 0
				},
				"update": {
				"drift": -15.683,
				"old_drift": -15.288639
				}
				}
				2018-03-05T17:31:10.788Z inf elmgr/1270 do-time-adj {
				"output": {
				"drift": -15.683,
				"old_drift": -15.288639
				}
				}
				2018-03-05T17:18:08.564Z inf elmgr/1270 ntp-poll {
				"answer": {
				"delta": -15.679638000000001,
				"host": "time.nist.gov",
				"ip": "132.163.97.1",
				"slop": 10.453676,
				"stratum": 1,
				"update": {
				"drift": -15.679639999999999
				}
				}
				}
			    …