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    <title>Mojang Studios Jira</title>
    <link>https://bugs.mojang.com</link>
    <description>This file is an XML representation of an issue</description>
    <language>en</language>    <build-info>
        <version>9.12.2</version>
        <build-number>9120002</build-number>
        <build-date>10-01-2024</build-date>
    </build-info>


<item>
            <title>[MC-6330] Sometimes the game speeds up randomly</title>
                <link>https://bugs.mojang.com/browse/MC-6330</link>
                <project id="10400" key="MC">Minecraft: Java Edition</project>
                    <description>&lt;div class=&quot;panel&quot; style=&quot;background-color: #FFFFCE;border-color: #ccc;border-style: solid;border-width: 1px;&quot;&gt;&lt;div class=&quot;panelHeader&quot; style=&quot;border-bottom-width: 1px;border-bottom-style: solid;border-bottom-color: #ccc;background-color: #F7D6C1;&quot;&gt;&lt;b&gt;Resolution&lt;/b&gt;&lt;/div&gt;&lt;div class=&quot;panelContent&quot; style=&quot;background-color: #FFFFCE;&quot;&gt;
&lt;p&gt;This report is &lt;b&gt;invalid&lt;/b&gt; as this bug seems to be caused by Java.&lt;br/&gt;
See &lt;a href=&quot;https://bugs.mojang.com/secure/ViewProfile.jspa?name=Galaxy_2Alex&quot; class=&quot;user-hover&quot; rel=&quot;galaxy_2alex&quot;&gt;Galaxy_2Alex&lt;/a&gt;&apos;s &lt;a href=&quot;http://www.reddit.com/r/Mojira/comments/37hwp0/reports_which_might_need_to_be_reopened/cro528a&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;comment&lt;/a&gt;:&lt;/p&gt;
&lt;blockquote&gt;
&lt;p&gt;That would be most likely a Java issue&lt;/p&gt;&lt;/blockquote&gt;
&lt;/div&gt;&lt;/div&gt;

&lt;p&gt;At random times, the game will speed up by a lot and after a few seconds will return to normal.&lt;br/&gt;
Has not happened in a superflat world. There seems to be no &quot;real&quot; way to reproduce this, but it does happen and has happened before in the snapshot.&lt;/p&gt;

&lt;p&gt;Play a world for long enough. You will get it eventually.&lt;/p&gt;</description>
                <environment>Java 7&lt;br/&gt;
OS X</environment>
        <key id="18999">MC-6330</key>
            <summary>Sometimes the game speeds up randomly</summary>
                <type id="1" iconUrl="https://bugs.mojang.com/secure/viewavatar?size=xsmall&amp;avatarId=18903&amp;avatarType=issuetype">Bug</type>
                                    <status id="5" iconUrl="https://bugs.mojang.com/images/icons/statuses/resolved.png" description="A resolution has been taken, and it is awaiting verification by reporter. From here issues are either reopened, or are closed.">Resolved</status>
                    <statusCategory id="3" key="done" colorName="success"/>
                                    <resolution id="7">Invalid</resolution>
                                        <assignee username="-1">Unassigned</assignee>
                                    <reporter username="marcono1234">Marcono1234</reporter>
                        <labels>
                    </labels>
                <created>Sun, 6 Jan 2013 02:08:45 +0100</created>
                <updated>Sat, 30 May 2015 13:57:05 +0200</updated>
                            <resolved>Thu, 12 Dec 2013 23:38:06 +0100</resolved>
                                    <version>Snapshot 13w01b</version>
                                    <fixVersion>Minecraft 1.5</fixVersion>
                                                        <votes>2</votes>
                                    <watches>3</watches>
                                                                            <comments>
                            <comment id="229044" author="torabi" created="Sat, 30 May 2015 13:57:05 +0200"  >&lt;p&gt;When you wake your computer from standby, to Minecraft it appears that the time suddenly changed, and it thinks that it lagged and needs to catch up, so it runs as quickly as possible until it catches up to where it thinks it needs to be.&lt;/p&gt;</comment>
                            <comment id="222015" author="marcono1234" created="Sun, 15 Mar 2015 21:57:40 +0100"  >&lt;p&gt;Confirmed for &lt;/p&gt;
&lt;ul class=&quot;alternate&quot; type=&quot;square&quot;&gt;
	&lt;li&gt;&lt;b&gt;1.8.3&lt;/b&gt; massive tick speed up when leaving Mincraft (with open inventory) running and the pc goes into standby and then closing the inventory again&lt;/li&gt;
&lt;/ul&gt;


&lt;p&gt;I am not sure if this relates to this, but I got:&lt;/p&gt;
&lt;div class=&quot;code panel&quot; style=&quot;border-width: 1px;&quot;&gt;&lt;div class=&quot;codeContent panelContent&quot;&gt;
&lt;pre class=&quot;code-java&quot;&gt;[20:01:44] [Client thread/INFO]: [CHAT] [Feuerwerksrakete] * 1 an Marcono1234 gegeben
[20:11:56] [Server thread/WARN]: Can&apos;t keep up! Did the system time change, or is the server overloaded? Running 4215ms behind, skipping 84 tick(s)
AL lib: (EE) MMDevApiProc: WaitForSingleObjectEx error: 0x102
[21:51:06] [Server thread/INFO]: Saving and pausing game...
[21:51:06] [Server thread/INFO]: Saving chunks &lt;span class=&quot;code-keyword&quot;&gt;for&lt;/span&gt; level &lt;span class=&quot;code-quote&quot;&gt;&apos;Neue Weltddd&apos;&lt;/span&gt;/Overworld
[21:51:06] [Server thread/INFO]: Saving chunks &lt;span class=&quot;code-keyword&quot;&gt;for&lt;/span&gt; level &lt;span class=&quot;code-quote&quot;&gt;&apos;Neue Weltddd&apos;&lt;/span&gt;/Nether
[21:51:06] [Server thread/INFO]: Saving chunks &lt;span class=&quot;code-keyword&quot;&gt;for&lt;/span&gt; level &lt;span class=&quot;code-quote&quot;&gt;&apos;Neue Weltddd&apos;&lt;/span&gt;/The End
[21:51:06] [Server thread/WARN]: Can&apos;t keep up! Did the system time change, or is the server overloaded? Running 205420ms behind, skipping 4108 tick(s)
&lt;/pre&gt;
&lt;/div&gt;&lt;/div&gt;

&lt;p&gt;(This can also be triggered when using a too high &lt;tt&gt;/gamerule randomTickSpeed&lt;/tt&gt; and then setting it back to the default one)&lt;/p&gt;</comment>
                            <comment id="124809" author="bljat" created="Thu, 12 Dec 2013 23:38:06 +0100"  >&lt;p&gt;No answer, assuming no longer an issue.&lt;/p&gt;</comment>
                            <comment id="121441" author="talven81" created="Tue, 26 Nov 2013 21:14:48 +0100"  >&lt;p&gt;Is this still a concern in the &lt;em&gt;current Minecraft version&lt;/em&gt; &lt;b&gt;1.7.2&lt;/b&gt; / Launcher version &lt;b&gt;1.3.4&lt;/b&gt; ? If so, please &lt;em&gt;update the affected versions&lt;/em&gt; in order to best aid Mojang ensuring bugs are still valid in the latest releases/pre-releases.&lt;/p&gt;</comment>
                            <comment id="98651" author="kumasasa" created="Tue, 13 Aug 2013 18:50:26 +0200"  >&lt;p&gt;I don&apos;t know what&apos;s SOP but simply copied all the stuff over here...&lt;/p&gt;</comment>
                            <comment id="98605" author="mentalmouse" created="Tue, 13 Aug 2013 12:30:03 +0200"  >&lt;p&gt;@Kumasasa:  Thanks for reopening the bug.  Is it SOP for a Wiki report to copy the entire report from there?  I thought I&apos;d decently summarized it, but I can see why you might want a straight copy.&lt;/p&gt;</comment>
                            <comment id="98592" author="kumasasa" created="Tue, 13 Aug 2013 06:59:29 +0200"  >&lt;p&gt;From  &lt;a href=&quot;http://www.minecraftwiki.net/wiki/Talk:Day-night_cycle#Timelapse_bug.3F&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;http://www.minecraftwiki.net/wiki/Talk:Day-night_cycle#Timelapse_bug.3F&lt;/a&gt;&lt;/p&gt;
&lt;blockquote&gt;
&lt;p&gt;Timelapse bug?&lt;/p&gt;

&lt;p&gt;The other day I took the latest update, . It contained several bugs, which I&apos;m not going to bore you with, but one, though, since it is of interest to this article. You see, I had played until my computer entered standby mode. Then, when I reopened it a few hours later, I looked to the sky, and the Sun moved with tremendious haste! And that wasn&apos;t it, the cows in my farm ran like they had inhaled kilograms of concentrated heroine. Then, I dived into the water, and drowned before I could blink! Cooking wood was speeded, everything. Except for myself. I was still the same, unhyped Player. Is this a bug?&lt;/p&gt;

&lt;ul&gt;
	&lt;li&gt;That happens when you forget to pause the game. Minecraft5025 19:30, 22 August 2012 (UTC)&lt;/li&gt;
&lt;/ul&gt;


&lt;ul&gt;
	&lt;li&gt;
	&lt;ul&gt;
		&lt;li&gt;Same thing can also occur on servers while running. It has happened during the twelfth season of Minecraft Ultra Hardcore. See: &lt;a href=&quot;http://www.youtube.com/watch?v=trCSukJNLag&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;http://www.youtube.com/watch?v=trCSukJNLag&lt;/a&gt; (Skip to around 8:45, this is where the players start finding out something is wrong.) A server reset later fixed the issue, but the occurrence seems random. --UltimateBacon 10:54, 31 July 2013 (UTC)&lt;/li&gt;
	&lt;/ul&gt;
	&lt;/li&gt;
&lt;/ul&gt;


&lt;ul&gt;
	&lt;li&gt;
	&lt;ul&gt;
		&lt;li&gt;
		&lt;ul&gt;
			&lt;li&gt;Heh &amp;#8211; that happened to me once last month... fortunately I was at my farm, so I was just mystified rather than slaughtered. You can still see my confused comment over at Talk:Chicken. Also, this has been reported as &lt;a href=&quot;https://bugs.mojang.com/browse/MC-6330&quot; title=&quot;Sometimes the game speeds up randomly&quot; class=&quot;issue-link&quot; data-issue-key=&quot;MC-6330&quot;&gt;&lt;del&gt;MC-6330&lt;/del&gt;&lt;/a&gt;. --Mental Mouse 01:48, 13 August 2013 (UTC)&lt;/li&gt;
		&lt;/ul&gt;
		&lt;/li&gt;
	&lt;/ul&gt;
	&lt;/li&gt;
&lt;/ul&gt;
&lt;/blockquote&gt;</comment>
                            <comment id="98583" author="mentalmouse" created="Tue, 13 Aug 2013 03:50:10 +0200"  >&lt;p&gt;No, this is current &amp;#8211; it happened to me last month (ETA: 1.6.2), and it&apos;s been recently reported by another Wiki user at &lt;a href=&quot;http://www.minecraftwiki.net/wiki/Talk:Day-night_cycle#Timelapse_bug.3F&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;http://www.minecraftwiki.net/wiki/Talk:Day-night_cycle#Timelapse_bug.3F&lt;/a&gt; .  &lt;/p&gt;

&lt;p&gt;It was also encountered by the Ultra Hardcore crew:  &lt;a href=&quot;http://www.youtube.com/watch?v=trCSukJNLag&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;http://www.youtube.com/watch?v=trCSukJNLag&lt;/a&gt; . Skip to around 8:45, which is when they first see speedy monsters &amp;#8211; it takes them a while to realize the sun is speeded up too.  They fixed it with a server restart.&lt;/p&gt;</comment>
                            <comment id="57447" author="firehunterx" created="Wed, 27 Mar 2013 12:57:59 +0100"  >&lt;p&gt;This does not seem to happen anymore. I&apos;m willing to say that it should be closed.&lt;/p&gt;</comment>
                            <comment id="54684" author="bljat" created="Sun, 17 Mar 2013 20:33:46 +0100"  >&lt;p&gt;Is this still a concern in the current Minecraft version? If so, please update the affected versions in order to best aid Mojang ensuring bugs are still valid in the latest releases/pre-releases.&lt;/p&gt;</comment>
                            <comment id="42357" author="firehunterx" created="Fri, 1 Feb 2013 15:02:51 +0100"  >&lt;p&gt;I got:&lt;/p&gt;

&lt;p&gt;Time ran backwards! Did the system time change?&lt;/p&gt;

&lt;p&gt;About 5 minutes after the speeding up ended.&lt;/p&gt;</comment>
                            <comment id="39058" author="firehunterx" created="Tue, 22 Jan 2013 13:43:45 +0100"  >&lt;p&gt;Right.&lt;br/&gt;
I assume the same result will occur if I use Minecraft.app instead of .exe?&lt;br/&gt;
I use a Mac.&lt;/p&gt;</comment>
                            <comment id="38322" author="kumasasa" created="Sat, 19 Jan 2013 18:22:20 +0100"  >&lt;p&gt;Start the game with&lt;/p&gt;
&lt;div class=&quot;code panel&quot; style=&quot;border-width: 1px;&quot;&gt;&lt;div class=&quot;codeContent panelContent&quot;&gt;
&lt;pre class=&quot;code-java&quot;&gt;java -Xmx1g -Xms512M -cp Minecraft.exe net.minecraft.LauncherFrame 
&lt;/pre&gt;
&lt;/div&gt;&lt;/div&gt;
&lt;p&gt;and look if the console reports something like&lt;/p&gt;
&lt;blockquote&gt;
&lt;p&gt;Cannot catch up, did the system time change ?&lt;/p&gt;&lt;/blockquote&gt;</comment>
                            <comment id="38216" author="yalishanda" created="Sat, 19 Jan 2013 12:30:17 +0100"  >&lt;p&gt;The game catches up when you put it to sleep over night?! I just had it happen to me. Never happened before...&lt;/p&gt;</comment>
                            <comment id="34095" author="firehunterx" created="Mon, 7 Jan 2013 23:08:49 +0100"  >&lt;p&gt;Not to be confused with some computers that go to sleep causing this upon wake.&lt;/p&gt;

&lt;p&gt;That is the game catching up.&lt;br/&gt;
This is when it just happens for no reason, as if you are in a lagspike and the game is catching up.&lt;/p&gt;</comment>
                            <comment id="33903" author="firehunterx" created="Mon, 7 Jan 2013 05:58:24 +0100"  >&lt;p&gt;Please bear in mind that it says &quot;Is modded: Very likely, Jar signature invalidated&quot;.&lt;br/&gt;
...Because I replaced char.png with a copy of my skin so that it shows offline.&lt;br/&gt;
Also note that it says &quot;Suspicious classes: No suspicious classes found.&quot;&lt;/p&gt;</comment>
                            <comment id="33569" author="kumasasa" created="Sun, 6 Jan 2013 11:20:12 +0100"  >&lt;p&gt;Please force a crash by pressing F3 + C for 10 seconds while ingame and attach the crash report here.&lt;/p&gt;</comment>
                    </comments>
                    <attachments>
                            <attachment id="17492" name="crash-2013-01-06_23.57.01-client.txt" size="3259" author="firehunterx" created="Mon, 7 Jan 2013 05:58:55 +0100"/>
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