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Views: 850     Votes:  2 
Tags: kernel   power-management   uptime  
Link: 🔍 See Original Answer on Ask Ubuntu 🔗

URL: https://askubuntu.com/q/1186851
Title: What counts towards uptime?
ID: /2019/11/07/What-counts-towards-uptime_
Created: November 7, 2019
Upload: November 24, 2022    Layout:  post
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The uptime is grossly misleading. If you use uptime -s it is more meaningful:

$ uptime -s
2019-10-31 05:30:09

Now you can see it simply shows you the last boot time. If you want to know the real uptime see this answer. Sample output:

$ suspendtime
Oct 31 05:55:19 to Oct 31 16:54:26 lasting 39,547 seconds
Oct 31 23:21:21 to Nov 01 04:29:12 lasting 18,471 seconds
Nov 01 05:51:27 to Nov 01 17:08:34 lasting 40,627 seconds
Nov 02 00:01:33 to Nov 02 10:28:46 lasting 37,633 seconds
Nov 02 18:15:59 to Nov 02 19:10:14 lasting 3,255 seconds
Nov 02 21:17:33 to Nov 03 05:31:54 lasting 33,261 seconds
Nov 03 12:06:39 to Nov 03 14:22:50 lasting 8,171 seconds
Nov 03 22:28:12 to Nov 04 04:17:13 lasting 20,941 seconds
Nov 04 05:49:40 to Nov 04 16:48:52 lasting 39,552 seconds
Nov 04 21:45:48 to Nov 05 04:19:26 lasting 23,618 seconds
Nov 05 05:52:05 to Nov 05 16:32:38 lasting 38,433 seconds
Nov 05 21:12:18 to Nov 06 04:16:50 lasting 25,472 seconds
Nov 06 05:50:45 to Nov 06 16:22:54 lasting 37,929 seconds

Linux uptime 572,689 seconds (6 Days 15 Hours 4 Minutes 49 Seconds)
13 Suspends 366,910 seconds (4 Days 5 Hours 55 Minutes 10 Seconds)
Real uptime 205,779 seconds (2 Days 9 Hours 9 Minutes 39 Seconds)
⇧ Does the size of your home directory affect startup performance? How to get real uptime?  ⇩