Has anyone else experienced clock manipulation in Bullet matches?

I’ll start by keeping it as short and simple as possible. I’ve experienced and have live recordings of my opponents clock adding time (fractions of a second) each time they move. It’s extremely evident once the clock reaches 20 seconds and shows the tenth of a second on the timer. 

i have uploaded a live screen recorded video of one example. The video is 2:19 long, the opponent has a remaining 9 seconds left when I loose on time. We both only have 1 minute so the video shouldn’t be any longer than 2 minutes tops! 

There is no lagging in internet connection. And if there were, you would definitely notice 20 seconds of  lagging. 

https://youtu.be/6t0KSXUL9X4

Just watch his clock... count down with it and watch it click up. After watching a few in frame by frame speed when the clock shows the tenth of a second, you can see that most commonly .3 seconds is added per move. (Sometimes more) 

thoughts on all this.

 Thanks. 

Time will always be added to account for lag and some transit time. As soon as you make your move, the opponent's clock on your client stats and they haven't received the move yet. The time it takes your move to reach the server never counts against your opponent's clock and only some of the lag between them and the server might. Same is true when your opponent moves as pertains to your clock.

https://support.chess.com/article/423-why-did-the-clock-times-suddenly-change-the-clocks-seem-broken

Did you watch the tube video I posted?

 Also, when I play with friends I made through chess.com, this phenomenon doesn’t exist. Also... 30 seconds of lag is VERY NOTICEABLE, don’t you think?

The annoying thing is the video lasts 2:19 and his opponent still had 10 seconds

So on chess.com a 1|0 game can take 2:30 to finish? What kind of crap is that? It's 2021.

As for the OP losing on time, I watched the game without looking at the clocks, and your opponent was moving faster, so it makes sense he had more time at the end.

Did you read the link he posted?

Nobody ever said it wasn't noticeable. Just that it is a known issue that people bring up enough to where chess.com wrote what amounts to a FAQ about it. 0.3 seconds lag is unremarkable, and that is 0.6 seconds per move so a 40 move game will take an extra 24 seconds. 

The latency for first person shooters is measured in milliseconds. 0.3 is 300 milliseconds... which would make the game literally unplayable.

I realize that only the very best programmers are hired on to companies like Blizzard, I don't expect chess.com to be paying millions in salary annually... or to have the very best servers... but this isn't exactly a FPS, it's fking chess, and there are not millions of people playing.

But ok, the guy was playing on his phone... so 2:30 for a 1|0 game... you know... maaaaaybe. Maybe.

The idea that it is manipulation for some purpose is absurd though. 

As to the lag, there is that people aren't playing chess on the best connections and that getting lag to zero should be at the bottom of chess.com's list of priorities seeing it only affects bullet and usually isn't much of a thing even then. 

That's a reasonable argument.

And I agree that a lot of people incorrectly believe their opponent is manipulating the clock when that's not at all what's going on.

Yeah. Pretty unfair. My friend has also had this before

Other sites may handle lag differently.

I was going to start defending chess.com and then I saw this video
https://www.youtube.com/watch?v=M426V7ty8uA
This has basically never happened to me but, nice lag compensation chess.com! That's a 30 second match that's lasted 5 minutes

If the site allowed all lag, it may have even been longer. If the site didn't compensate for any lag, fast time controls would be effectively impossible. 

Moves always take time to transmit and once a move is made on a client, that time shouldn't all be counted against the opponent's clock.

Premoves completely exaggerate the issue in that video.

It seems to be a game composed entirely of pre-moves from both sides, not very representative of normal play and arguably not applicable to the way the clocks work in normal play. It looks like they are testing the what happens with lag compensation in extreme circumstances.

So what is the solution to physics and the fact premoves only take 0.1 seconds off the clock? I'm not downplaying anything.

Moves take time to go between the clients and the server. Some of that time doesn't count against either player's clock. Adding to that, premoves only take 0.1 seconds, except in extreme lag situations, and that does make things look weird.

I don't know how other sites handle lag, but you can't get around the physics of packet transmission times.