I see some entries that indicate something is going on, but I can't make sense of it. Looks like it happened around 6:00am EST. After that, you see when I booted the system up. I did a search for BOOT_TIME and only got today's.
Thank you.
5/24/16 6:00:57.880 AM com.apple.backupd[2162]: Post-backup thinning complete: 1 expired backups removed
5/24/16 6:00:57.904 AM UserEventAgent[45]: Failed to send message because the port couldn't be created.
5/24/16 6:00:58.067 AM UserEventAgent[45]: Failed to send message because the port couldn't be created.
5/24/16 6:00:58.116 AM com.apple.backupd[2162]: Backup completed successfully.
5/24/16 6:01:01.118 AM com.apple.backupd[2162]: Waiting for Spotlight to finish indexing /Volumes/Time Machine Backups/Backups.backupdb
5/24/16 6:01:47.757 AM launchservicesd[81]: SecTaskLoadEntitlements failed error=22
5/24/16 6:01:47.761 AM launchservicesd[81]: SecTaskLoadEntitlements failed error=22
5/24/16 6:01:47.801 AM AOUDownloadCount[2194]: ERROR|AOUDownloadCount.m|368L|Error:AOUDownloadCount::sendDownloadCountInfo:get DownloadCountInfo failed.
5/24/16 6:01:47.803 AM appleeventsd[53]: SecTaskLoadEntitlements failed error=22
5/24/16 6:02:07.470 AM com.apple.backupd[2162]: Waiting for Spotlight to finish indexing /Volumes/Time Machine Backups/Backups.backupdb
5/24/16 6:02:59.667 AM com.apple.xpc.launchd[1]: (com.adobe.ARMDCHelper.cc24aef4a1b90ed56a725c38014c95072f92651fb65e1bf9c8e43c37 a23d420d[2195]) Service exited with abnormal code: 111
5/24/16 6:04:19.837 AM com.apple.backupd[2162]: Waiting for Spotlight to finish indexing /Volumes/Time Machine Backups/Backups.backupdb
5/24/16 6:05:23.937 AM mdworker[2128]: (ImportBailout.Error:1331) Asked to exit for Diskarb
5/24/16 6:05:23.937 AM mdworker[2137]: (ImportBailout.Error:1331) Asked to exit for Diskarb
5/24/16 6:05:23.937 AM mdworker[2132]: (ImportBailout.Error:1331) Asked to exit for Diskarb
5/24/16 6:05:23.938 AM mdworker[2135]: (ImportBailout.Error:1331) Asked to exit for Diskarb
5/24/16 6:05:23.938 AM mdworker[2160]: (ImportBailout.Error:1331) Asked to exit for Diskarb
5/24/16 6:05:23.938 AM mdworker[2147]: (ImportBailout.Error:1331) Asked to exit for Diskarb
5/24/16 6:05:23.939 AM mdworker[2192]: (ImportBailout.Error:1331) Asked to exit for Diskarb
5/24/16 6:05:34.930 AM diskarbitrationd[70]: mds [64]:20483 not responding.
5/24/16 6:05:36.000 AM kernel[0]: hfs: unmount initiated on Time Machine Backups on device disk2s2
5/24/16 6:05:39.114 AM com.apple.backupd[2162]: Ejected Time Machine disk image: /Volumes/Data/Monster Pro.sparsebundle
5/24/16 6:05:39.125 AM mdworker[2197]: (ImportBailout.Error:1331) Asked to exit for Diskarb
5/24/16 6:05:39.125 AM mdworker[2199]: (ImportBailout.Error:1331) Asked to exit for Diskarb
5/24/16 6:05:39.000 AM kernel[0]: AFP_VFS afpfs_unmount: /Volumes/Data, flags 0, pid 2201
5/24/16 6:05:39.000 AM kernel[0]: ASP_TCP Disconnect: triggering reconnect by bumping reconnTrigger from curr value 0 on so 0x3c4c3ce18bbacf4f
5/24/16 6:05:39.000 AM kernel[0]: ASP_TCP Detach: Reply queue not empty?
5/24/16 6:05:39.738 AM com.apple.backupd[2162]: Ejected Time Machine network volume.
5/24/16 6:05:42.340 AM com.apple.cts[45]: com.apple.coreduetd.knowledge: scheduler_evaluate_activity told me to run this job; however, but the start time isn't for 371 seconds. Ignoring.
5/24/16 6:05:42.340 AM com.apple.cts[45]: com.apple.coreduetd.knowledge: scheduler_evaluate_activity told me to run this job; however, but the start time isn't for 371 seconds. Ignoring.
5/24/16 6:06:16.458 AM com.apple.cts[45]: com.apple.coreduetd.knowledge: scheduler_evaluate_activity told me to run this job; however, but the start time isn't for 337 seconds. Ignoring.
5/24/16 6:06:16.458 AM com.apple.cts[45]: com.apple.coreduetd.knowledge: scheduler_evaluate_activity told me to run this job; however, but the start time isn't for 337 seconds. Ignoring.
5/24/16 6:06:46.457 AM com.apple.cts[45]: com.apple.coreduetd.knowledge: scheduler_evaluate_activity told me to run this job; however, but the start time isn't for 307 seconds. Ignoring.
5/24/16 6:06:46.457 AM com.apple.cts[45]: com.apple.coreduetd.knowledge: scheduler_evaluate_activity told me to run this job; however, but the start time isn't for 307 seconds. Ignoring.
5/24/16 6:07:16.456 AM com.apple.cts[45]: com.apple.coreduetd.knowledge: scheduler_evaluate_activity told me to run this job; however, but the start time isn't for 277 seconds. Ignoring.
5/24/16 6:07:16.456 AM com.apple.cts[45]: com.apple.coreduetd.knowledge: scheduler_evaluate_activity told me to run this job; however, but the start time isn't for 277 seconds. Ignoring.
5/24/16 6:07:48.251 AM com.apple.cts[45]: com.apple.coreduetd.knowledge: scheduler_evaluate_activity told me to run this job; however, but the start time isn't for 245 seconds. Ignoring.
5/24/16 6:07:48.252 AM com.apple.cts[45]: com.apple.coreduetd.knowledge: scheduler_evaluate_activity told me to run this job; however, but the start time isn't for 245 seconds. Ignoring.
5/24/16 6:08:18.404 AM com.apple.cts[45]: com.apple.coreduetd.knowledge: scheduler_evaluate_activity told me to run this job; however, but the start time isn't for 215 seconds. Ignoring.
5/24/16 6:08:18.404 AM com.apple.cts[45]: com.apple.coreduetd.knowledge: scheduler_evaluate_activity told me to run this job; however, but the start time isn't for 215 seconds. Ignoring.
5/24/16 6:08:48.444 AM com.apple.cts[45]: com.apple.coreduetd.knowledge: scheduler_evaluate_activity told me to run this job; however, but the start time isn't for 185 seconds. Ignoring.
5/24/16 6:08:48.444 AM com.apple.cts[45]: com.apple.coreduetd.knowledge: scheduler_evaluate_activity told me to run this job; however, but the start time isn't for 185 seconds. Ignoring.
5/24/16 6:09:18.443 AM com.apple.cts[45]: com.apple.coreduetd.knowledge: scheduler_evaluate_activity told me to run this job; however, but the start time isn't for 155 seconds. Ignoring.
5/24/16 6:09:18.443 AM com.apple.cts[45]: com.apple.coreduetd.knowledge: scheduler_evaluate_activity told me to run this job; however, but the start time isn't for 155 seconds. Ignoring.
5/24/16 6:09:48.444 AM com.apple.cts[45]: com.apple.coreduetd.knowledge: scheduler_evaluate_activity told me to run this job; however, but the start time isn't for 125 seconds. Ignoring.
5/24/16 6:09:48.444 AM com.apple.cts[45]: com.apple.coreduetd.knowledge: scheduler_evaluate_activity told me to run this job; however, but the start time isn't for 125 seconds. Ignoring.
5/24/16 6:10:22.451 AM com.apple.cts[45]: com.apple.coreduetd.knowledge: scheduler_evaluate_activity told me to run this job; however, but the start time isn't for 91 seconds. Ignoring.
5/24/16 6:10:22.452 AM com.apple.cts[45]: com.apple.coreduetd.knowledge: scheduler_evaluate_activity told me to run this job; however, but the start time isn't for 91 seconds. Ignoring.
5/24/16 6:10:31.000 AM syslogd[46]: ASL Sender Statistics
5/24/16 6:10:56.405 AM com.apple.cts[45]: com.apple.coreduetd.knowledge: scheduler_evaluate_activity told me to run this job; however, but the start time isn't for 57 seconds. Ignoring.
5/24/16 6:10:56.406 AM com.apple.cts[45]: com.apple.coreduetd.knowledge: scheduler_evaluate_activity told me to run this job; however, but the start time isn't for 57 seconds. Ignoring.
5/24/16 6:11:26.704 AM com.apple.cts[45]: com.apple.coreduetd.knowledge: scheduler_evaluate_activity told me to run this job; however, but the start time isn't for 27 seconds. Ignoring.
5/24/16 6:11:26.705 AM com.apple.cts[45]: com.apple.coreduetd.knowledge: scheduler_evaluate_activity told me to run this job; however, but the start time isn't for 27 seconds. Ignoring.
5/24/16 6:20:31.000 AM syslogd[46]: ASL Sender Statistics
5/24/16 6:22:35.029 AM com.apple.usbmuxd[82]: _SendAttachNotification Device dc:2b:2a:5d:bf:3e@fe80::de2b:2aff:fe5d:bf3e._apple-mobdev2._tcp.local. has already appeared on interface 4. Suppressing duplicate attach notification.
5/24/16 6:22:35.030 AM com.apple.usbmuxd[82]: _SendAttachNotification Device dc:2b:2a:5d:bf:3e@fe80::de2b:2aff:fe5d:bf3e._apple-mobdev2._tcp.local. has already appeared on interface 4. Suppressing duplicate attach notification.
5/24/16 6:22:59.106 AM iTunes[327]: Entered:_AMMuxedDeviceDisconnected, mux-device:61
5/24/16 6:22:59.106 AM iTunes[327]: Entered:__thr_AMMuxedDeviceDisconnected, mux-device:61
5/24/16 6:22:59.106 AM iTunes[327]: tid:1868f - Mux ID not found in mapping dictionary
5/24/16 6:22:59.106 AM iTunes[327]: tid:1868f - Can't handle disconnect with invalid ecid
5/24/16 6:26:44.575 AM com.apple.usbmuxd[82]: _SendAttachNotification Device dc:2b:2a:5d:bf:3e@fe80::de2b:2aff:fe5d:bf3e._apple-mobdev2._tcp.local. has already appeared on interface 4. Suppressing duplicate attach notification.
5/24/16 6:26:44.575 AM com.apple.usbmuxd[82]: _SendAttachNotification Device dc:2b:2a:5d:bf:3e@fe80::de2b:2aff:fe5d:bf3e._apple-mobdev2._tcp.local. has already appeared on interface 4. Suppressing duplicate attach notification.
5/24/16 6:26:50.625 AM iTunes[327]: Entered:_AMMuxedDeviceDisconnected, mux-device:62
5/24/16 6:26:50.625 AM iTunes[327]: Entered:__thr_AMMuxedDeviceDisconnected, mux-device:62
5/24/16 6:26:50.625 AM iTunes[327]: tid:1868f - Mux ID not found in mapping dictionary
5/24/16 6:26:50.625 AM iTunes[327]: tid:1868f - Can't handle disconnect with invalid ecid
5/24/16 12:00:26.000 PM bootlog[0]: BOOT_TIME 1464105626 0