Can someone help me understand console logs?

I'm trying to figure out if my computer was used today and what was done.  Can someone tell me what the console logs mean?
I closed my Mac at 6am and  I can figure out why it shows activity at 810 am....
Thank you.
2/11/13 8:10:20.008 AM SyncServer[12761]: [0x7fdf6840bdf0] |SyncServer|Warning| Refreshing watchdog because of a calendar time change alert.
2/11/13 8:10:20.000 AM kernel[0]: Wake reason: EC.SleepTimer (SleepTimer)
2/11/13 8:10:20.000 AM kernel[0]: AirPort_Brcm43xx::powerChange: System Wake - Full Wake/ Dark Wake / Maintenance wake
2/11/13 8:10:20.000 AM kernel[0]: Previous Sleep Cause: 5
2/11/13 8:10:20.000 AM kernel[0]: en0: 802.11d country code set to 'X0'.
2/11/13 8:10:20.000 AM kernel[0]: en0: Supported channels 1 2 3 4 5 6 7 8 9 10 11 36 40 44 48 52 56 60 64 100 104 108 112 116 120 124 128 132 136 140 149 153 157 161 165
2/11/13 8:10:20.000 AM kernel[0]: TBT W (1): 0 [x]
2/11/13 8:10:20.427 AM hidd[89]: MultitouchHID: device bootloaded
2/11/13 8:10:20.000 AM kernel[0]: AppleUSBMultitouchDriver::checkStatus - received Status Packet, Payload 2: device was reinitialized
2/11/13 8:10:20.460 AM configd[17]: network changed: v4(en0-:10.0.1.3) DNS- Proxy- SMB
2/11/13 8:10:20.587 AM awacsd[58]: InnerStore GetWakeInfoForZone: zero address for 81236581.members.btmm.icloud.com.
2/11/13 8:10:20.596 AM awacsd[58]: KV HTTP 0
2/11/13 8:10:20.998 AM iCalExternalSync[12903]: [0x7ff658c0e4d0] |Miscellaneous|Error| SyncServices precondition failure in [ISyncConcreteSession pushChangesFromRecord:withIdentifier:]: you can't change the record's entity name from com.apple.calendars.DisplayAlarm to com.apple.calendars.AudioAlarm in {
    "com.apple.ical.sound" = Basso;
    "com.apple.syncservices.KeepAwayFromServers" = 1;
    "com.apple.syncservices.RecordEntityName" = "com.apple.calendars.AudioAlarm";
    owner =     (
        "Event/p1283"
    sound = Basso;
    triggerduration = "-1800";
2/11/13 8:10:20.000 AM kernel[0]: en0: 802.11d country code set to 'US'.
2/11/13 8:10:20.000 AM kernel[0]: en0: Supported channels 1 2 3 4 5 6 7 8 9 10 11 36 40 44 48 52 56 60 64 100 104 108 112 116 120 124 128 132 136 140 149 153 157 161 165
2/11/13 8:10:20.999 AM iCalExternalSync[12903]: [ICalExternalSync ]Encountered exception: [ISyncConcreteSession pushChangesFromRecord:withIdentifier:]: you can't change the record's entity name from com.apple.calendars.DisplayAlarm to com.apple.calendars.AudioAlarm in {
    "com.apple.ical.sound" = Basso;
    "com.apple.syncservices.KeepAwayFromServers" = 1;
    "com.apple.syncservices.RecordEntityName" = "com.apple.calendars.AudioAlarm";
    owner =     (
        "Event/p1283"
    sound = Basso;
    triggerduration = "-1800";
} withStack: (
0   iCalExternalSync                    0x00000001023fda60 iCalExternalSync + 125536
1   iCalExternalSync                    0x00000001023ecac9 iCalExternalSync + 56009
2   iCalExternalSync                    0x00000001023fc694 iCalExternalSync + 120468
3   libdyld.dylib                       0x00007fff8cacd7e1 start + 0
4   ???                                 0x0000000000000007 0x0 + 7
2/11/13 8:10:21.000 AM iCalExternalSync[12903]: [ICalExternalSync ]NSException name:ISyncInvalidArgumentsException reason:[ISyncConcreteSession pushChangesFromRecord:withIdentifier:]: you can't change the record's entity name from com.apple.calendars.DisplayAlarm to com.apple.calendars.AudioAlarm in {
    "com.apple.ical.sound" = Basso;
    "com.apple.syncservices.KeepAwayFromServers" = 1;
    "com.apple.syncservices.RecordEntityName" = "com.apple.calendars.AudioAlarm";
    owner =     (
        "Event/p1283"
    sound = Basso;
    triggerduration = "-1800";
2/11/13 8:10:21.002 AM SyncServer[12761]: [0x7fdf6840bdf0] |Server|Warning| lost connection 0x7fdf692395e0 to com.apple.iCal
2/11/13 8:10:21.417 AM com.apple.time[11]: Next maintenance wake [Backup Interval]: <date: 0x7f846c10c670> Mon Feb 11 07:03:13 2013 EST (approx)
2/11/13 8:10:21.417 AM com.apple.time[11]: Requesting maintenance wake [Backup Interval]: <date: 0x7f846c10c670> Mon Feb 11 07:03:13 2013 EST (approx)
2/11/13 8:10:21.000 AM kernel[0]: Graphics suppressed 1168 ms
2/11/13 8:10:22.000 AM kernel[0]: MacAuthEvent en0   Auth result for: 10:9a:dd:81:af:c2  MAC AUTH succeeded
2/11/13 8:10:22.000 AM kernel[0]: wlEvent: en0 en0 Link UP virtIf = 0
2/11/13 8:10:22.000 AM kernel[0]: AirPort: Link Up on en0
2/11/13 8:10:22.000 AM kernel[0]: en0: BSSID changed to 10:9a:dd:81:af:c2
2/11/13 8:10:22.000 AM kernel[0]: en0::IO80211Interface::postMessage bssid changed
2/11/13 8:10:22.000 AM kernel[0]: AirPort: RSN handshake complete on en0
2/11/13 8:10:22.975 AM configd[17]: network changed: v4(en0+:10.0.1.3) DNS+ Proxy+ SMB
2/11/13 8:10:23.017 AM awacsd[58]: InnerStore GetWakeInfoForZone: zero address for 81236581.members.btmm.icloud.com.
2/11/13 8:10:23.018 AM mDNSResponder[42]: Double NAT (external NAT gateway address 172.28.117.122 is also a private RFC 1918 address)
2/11/13 8:10:23.019 AM UserEventAgent[11]: Captive: en0: Not probing 'Josh's Wi-Fi Network' (protected network)
2/11/13 8:10:23.028 AM configd[17]: network changed: v4(en0!:10.0.1.3) DNS Proxy SMB
2/11/13 8:10:23.374 AM airportd[12869]: _doAutoJoin: Already associated to “Josh's Wi-Fi Network”. Bailing on auto-join.
2/11/13 8:10:23.517 AM mDNSResponder[42]: ERROR: socket closed prematurely tcpInfo->nread = 0
2/11/13 8:10:31.000 AM kernel[0]: hibernate image path: /var/vm/sleepimage
2/11/13 8:10:31.000 AM kernel[0]: AirPort_Brcm43xx::powerChange: System Sleep
2/11/13 8:10:31.000 AM kernel[0]: sizeof(IOHibernateImageHeader) == 512
2/11/13 8:10:31.000 AM kernel[0]: kern_open_file_for_direct_io(0) took 0 ms
2/11/13 8:10:31.000 AM kernel[0]: Opened file /var/vm/sleepimage, size 4294967296, partition base 0x0, maxio 400000 ssd 1
2/11/13 8:10:31.000 AM kernel[0]: hibernate image major 1, minor 0, blocksize 512, pollers 5
2/11/13 8:11:01.881 AM mDNSResponder[42]: ERROR: socket closed prematurely tcpInfo->nread = 0
2/11/13 8:11:09.299 AM iCalExternalSync[12910]: [0x7ffd33c0e4d0] |Miscellaneous|Error| SyncServices precondition failure in [ISyncConcreteSession pushChangesFromRecord:withIdentifier:]: you can't change the record's entity name from com.apple.calendars.DisplayAlarm to com.apple.calendars.AudioAlarm in {
    "com.apple.ical.sound" = Basso;
    "com.apple.syncservices.KeepAwayFromServers" = 1;
    "com.apple.syncservices.RecordEntityName" = "com.apple.calendars.AudioAlarm";
    owner =     (
        "Event/p1283"
    sound = Basso;
    triggerduration = "-1800";
2/11/13 8:11:09.301 AM iCalExternalSync[12910]: [ICalExternalSync ]Encountered exception: [ISyncConcreteSession pushChangesFromRecord:withIdentifier:]: you can't change the record's entity name from com.apple.calendars.DisplayAlarm to com.apple.calendars.AudioAlarm in {
    "com.apple.ical.sound" = Basso;
    "com.apple.syncservices.KeepAwayFromServers" = 1;
    "com.apple.syncservices.RecordEntityName" = "com.apple.calendars.AudioAlarm";
    owner =     (
        "Event/p1283"
    sound = Basso;
    triggerduration = "-1800";
} withStack: (
0   iCalExternalSync                    0x000000010e03aa60 iCalExternalSync + 125536
1   iCalExternalSync                    0x000000010e029ac9 iCalExternalSync + 56009
2   iCalExternalSync                    0x000000010e039694 iCalExternalSync + 120468
3   libdyld.dylib                       0x00007fff8cacd7e1 start + 0
4   ???                                 0x0000000000000007 0x0 + 7
2/11/13 8:11:09.301 AM iCalExternalSync[12910]: [ICalExternalSync ]NSException name:ISyncInvalidArgumentsException reason:[ISyncConcreteSession pushChangesFromRecord:withIdentifier:]: you can't change the record's entity name from com.apple.calendars.DisplayAlarm to com.apple.calendars.AudioAlarm in {
    "com.apple.ical.sound" = Basso;
    "com.apple.syncservices.KeepAwayFromServers" = 1;
    "com.apple.syncservices.RecordEntityName" = "com.apple.calendars.AudioAlarm";
    owner =     (
        "Event/p1283"
    sound = Basso;
    triggerduration = "-1800";
2/11/13 8:11:09.305 AM SyncServer[12761]: [0x7fdf6840bdf0] |Server|Warning| lost connection 0x7fdf6923a000 to com.apple.iCal
2/11/13 8:11:13.230 AM Printer Pro Desktop[230]: Empty task
2/11/13 8:11:19.000 AM kernel[0]: hibernate_alloc_pages flags 00000000, gobbling 0 pages
2/11/13 8:11:19.000 AM kernel[0]: hibernate_setup(0) took 47756 ms
2/11/13 8:11:22.000 AM kernel[0]: en0: BSSID changed to 10:9a:dd:81:af:c2
2/11/13 8:11:22.000 AM kernel[0]: LE is supported - Disable LE meta event
2/11/13 8:11:22.000 AM kernel[0]: wlEvent: en0 en0 Link DOWN virtIf = 0
2/11/13 8:11:22.000 AM kernel[0]: AirPort: Link Down on en0. Reason 8 (Disassociated because station leaving).
2/11/13 8:11:22.000 AM kernel[0]: en0::IO80211Interface::postMessage bssid changed
2/11/13 8:11:22.000 AM kernel[0]: hibernate_page_list_setall start 0xffffff8097de9000, 0xffffff8097e09000

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