At what time did my Windows XP machine come out of hibernation?

Solution 1:

Assuming that you have the Event Log enabled,
Check the System Log events after a restore from hibernation.
You will find a series of events

  • First will be the Event Log itself starting again
  • This will be followed by System Control Manager events starting services again.

The timestamp for these events would help you identify the exact time you came out of hibernation. Once you know this pattern, it can be used any time in future.

Some notes.

  1. You can reach the Event Logs through: Start ==> Administrative Tools ==> Event Viewer
    • You might want to increase the log file size if you want to retain events too far back in time (but, usually your last hibernation would not be too far back in time)
    • You can export the event log in various formats (CSV, TXT, EVT) to search through them later

Solution 2:

This works for me: start a command prompt and run net statistics workstation. The first thing returned is the start time.