Uptime with no options returns the system's uptime:
c:\uptime
\\DONFUNK-DEV2 has been up for: 13 day(s), 17 hour(s), 3 minute(s), 35 second(s)
Uptime with the /s option returns system start and stop events as well as availability calculations.
c:\uptime /s
Uptime Report for: \\DONFUNK-DEV2
Current OS: Microsoft Windows 2000 Uniprocessor Free.
Time Zone: Pacific Daylight Time
System Events as of 9/15/1999 10:54:10 AM:
Date: Time: Event: Comment:
---------- ----------- ------------------- -----------------------------------
7/26/1999 1:01:48 AM Boot
7/26/1999 6:46:35 PM Shutdown Prior uptime:0d 17h:44m:47s
7/26/1999 6:49:21 PM Boot Prior downtime:0d 0h:2m:46s
7/27/1999 11:49:23 AM Shutdown Prior uptime:0d 17h:0m:2s
7/27/1999 11:52:14 AM Boot Prior downtime:0d 0h:2m:51s
8/5/1999 12:06:46 PM Shutdown Prior uptime:9d 0h:14m:32s
8/5/1999 12:17:16 PM Boot Prior downtime:0d 0h:10m:30s
8/5/1999 12:37:10 PM Shutdown Prior uptime:0d 0h:19m:54s
8/5/1999 12:39:32 PM Boot Prior downtime:0d 0h:2m:22s
8/6/1999 5:14:20 PM Shutdown Prior uptime:1d 4h:34m:48s
8/6/1999 5:25:12 PM Boot Prior downtime:0d 0h:10m:52s
8/6/1999 5:43:10 PM Shutdown Prior uptime:0d 0h:17m:58s
8/6/1999 5:45:31 PM Boot Prior downtime:0d 0h:2m:21s
8/23/1999 11:17:44 AM Shutdown Prior uptime:16d 17h:32m:13s
8/23/1999 11:21:07 AM Boot Prior downtime:0d 0h:3m:23s
9/1/1999 5:10:32 PM Shutdown Prior uptime:9d 5h:49m:25s
9/1/1999 5:13:18 PM Boot Prior downtime:0d 0h:2m:46s
9/1/1999 5:33:19 PM Abnormal Shutdown Prior uptime:0d 0h:20m:1s
9/1/1999 5:39:14 PM Boot Prior downtime:0d 0h:5m:55s
Current System Uptime: 13 day(s), 17 hour(s), 2 minute(s), 21 second(s)
--------------------------------------------------------------------------------
Since 7/26/1999:
System Availability: 99.9409%
Total Uptime: 51d 9h:8m:36s
Total Downtime: 0d 0h:43m:46s
Total Reboots: 10
Mean Time Between Reboots: 5.14 days
Total Bluescreens: 0
To view a system's information for the previous n days, the /p:n switch may be used. For example to view the system information for the last 10 days use:
c:\uptime /s /p:10
Uptime Report for: \\DONFUNK-DEV2
Current OS: Microsoft Windows 2000 Uniprocessor Free.
Time Zone: Pacific Daylight Time
System Events as of 9/15/1999 11:01:22 AM:
Date: Time: Event: Comment:
---------- ----------- ------------------- -----------------------------------
Current System Uptime: 13 day(s), 17 hour(s), 9 minute(s), 32 second(s)
--------------------------------------------------------------------------------
Since 9/5/1999: (Last 10 Days)
System Availability: 100.0000%
Total Uptime: 10d 11h:1m:22s
Total Downtime: 0d 0h:0m:0s
Total Reboots: 0
Total Bluescreens: 0
Uptime also allows the user to turn on and off the system's "heartbeat."
c:\uptime /heartbeat
The system heartbeat is a timestamp written to the registry
at a fixed interval. This timestamp is used by UPTIME
to calculate how long a system was down when it fails
to go through a normal shutdown. Using this heartbeat may
interfere with power management since it writes to the
disk at regular intervals. Therefore the system heartbeat
should not normally be used on a laptop.
NOTE: Any change to the heartbeat settings will not take
effect until the next reboot.
The system heartbeat is currently enabled.