Linux

On any command line you can likely just run a single letter command: w

53 min

I always shut it down every night, so usually not much more than 12 hours at best.

BlueEther@BlueEthers-MacBook-Air ~ % uptime
17:18  up 47 days,  6:26, 2 users, load averages: 2.19 2.61 2.56

blueaether@lemmy:~$ uptime
 04:25:37 up 204 days, 19:45,  1 user,  load average: 0.09, 0.15, 0.16

The TV/server has been up for 38 days, I think it got turned off by mistake last month

My laptop has been up for 123 days. It gets put in standby when it's not in use. I should probably reboot into a new kernel soon.
My desktop gets shut down at night because it's power hungry.
My server gets shut down about once a year for cleaning and hardware upgrades.

Mine turned off yesterday for an update.

12 days and 17 hours. As another commenter pointed out, checked with uptime

07:38:25 up 15 days, 15:54, 2 users, load average: 2,93, 2,24, 1,65

34 days without booting? Are you using a Debian system and don't update often? You should, for security patches at least. I'm on an Arch based system and update every day. Sometimes there are updates that require a reboot, so all services are up to date. My system is often up for a few days, sometimes even for a week.

Small tip, logging out and in will have a semi clean environment without a full boot. That means the uptime won't reset.

I turn it off every night or if I'm away for many hours, so about 10 minutes right now.

I do have a Raspberry Pi that's been up 12 weeks, 5 days, 19 hours, 59 minutes. I believe there was a planned power outage when it was lasted turned off.

It depends. Sometimes I shut it down every night. Occasionally, I'll leave it in sleep mode for a few days.

I think the longest uptime I've had on anything I've owned is probably a month or so on a Raspberry Pi 4 server I used to have running with a personal Mediawiki instance (I still have the Pi, but if I ran a server in my dorm, I have the feeling someone might come to bite off my hand).

I have an Nvidia GPU and suspend/resume works about 20% of the time so my PC is shutdown every time I won't use it for a few hours. Don't use my personal computer that much so it doesn't really bother me a lot. My laptop is however long the battery lasts with the lid closed, I don't use it much so most times I pick it up it's dead.

Thanks to Mint's updates... about 10 minutes.

I have all my devices set to reboot once weekly a few hours after daily scheduled updates. I probably don't need to do this, but I do. It's a habit I got in with scheduling router reboots, and then started extending it to other devices. It's nice to have some solid uptime, but I have three unbound DNS servers in sequence so they update and reboot on a staggered schedule so it's like they never go down.

You never know when the odd cosmic ray is gonna hit and flip yer bits.

I had about 300 days of uptime on my server but I did some hardware maintenance recently. I'm back up to like 20 but I need to do more stuff.

I did find a fun "bug" the other day with windows and how it tracks uptime. Since shutting down hibernates the kernel it doesn't treat it as time off. So when I fired up this surface I hadn't used in a long time it had 180 days of uptime.

As of today about 10 years not counting the odd driver restart

I have a drive that's roughly 13 years old, and has around 11 years 80 days of power on time if that says how much my computer is on.

I only restart it when windows updates start fucking with my networking or my audio drives entirely shit the bed.

55 days, 34 mins

Edit: my Mac mini (the torrent client) is 199 days.

My main PC only stays on for a couple days at a time (on sleep/hibernate when not in use) only because I'm generally too lazy to shut all programs down. I reboot on updates though, which is every couple days.