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Add a timer-powered <code>DelayedCommand</code> for delayed ECS actions

A-ECSEntities, components, systems, and eventsEntities, components, systems, and events

A-TimeInvolves time keeping and reportingInvolves time keeping and reporting

C-FeatureA new feature, making something new possibleA new feature, making something new possible

D-ComplexQuite challenging from either a design or technical perspective. Ask for help!Quite challenging from either a design or technical perspective. Ask for help!

S-Needs-HelpThe author needs help finishing this PR.The author needs help finishing this PR.

X-UncontroversialThis work is generally agreed uponThis work is generally agreed upon

Status: Draft (not ready).

bevyengine/bevynumber 20155

#20155 In bevyengine/bevy;

· alice-i-cecile opened on Jul 15, 2025

· 

0.18

'2D Viewport To World' example doesn't follow API docs recommendation

A-InputPlayer input via keyboard, mouse, gamepad, and morePlayer input via keyboard, mouse, gamepad, and more

A-TimeInvolves time keeping and reportingInvolves time keeping and reporting

C-DocsAn addition or correction to our documentationAn addition or correction to our documentation

C-ExamplesAn addition or correction to our examplesAn addition or correction to our examples

S-Needs-DesignThis issue requires design work to think about how it would best be accomplishedThis issue requires design work to think about how it would best be accomplished

X-UncontroversialThis work is generally agreed uponThis work is generally agreed upon

Status: Open.

#19416 In bevyengine/bevy;

· AccessViolation95 opened on May 28, 2025

Timer appears to be broken in headless setups

A-TimeInvolves time keeping and reportingInvolves time keeping and reporting

C-BugAn unexpected or incorrect behaviorAn unexpected or incorrect behavior

P-RegressionFunctionality that used to work but no longer does. Add a test for this!Functionality that used to work but no longer does. Add a test for this!

Status: Open.

#19112 In bevyengine/bevy;

· lyonbeckers opened on May 7, 2025

Allow observers to run on a timer being finished

A-TimeInvolves time keeping and reportingInvolves time keeping and reporting

C-FeatureA new feature, making something new possibleA new feature, making something new possible

Status: Open.

#18894 In bevyengine/bevy;

· Freyja-moth opened on Apr 21, 2025

RemovedComponents doesn't work in FixedUpdate

A-ECSEntities, components, systems, and eventsEntities, components, systems, and events

A-TimeInvolves time keeping and reportingInvolves time keeping and reporting

C-BugAn unexpected or incorrect behaviorAn unexpected or incorrect behavior

S-Needs-DesignThis issue requires design work to think about how it would best be accomplishedThis issue requires design work to think about how it would best be accomplished

Status: Open.

#16520 In bevyengine/bevy;

· mirsella opened on Nov 26, 2024

Allow use of systems for custom time handling

A-TimeInvolves time keeping and reportingInvolves time keeping and reporting

C-FeatureA new feature, making something new possibleA new feature, making something new possible

D-ModestA "normal" level of difficulty; suitable for simple features or challenging fixesA "normal" level of difficulty; suitable for simple features or challenging fixes

S-Ready-For-ImplementationThis issue is ready for an implementation PR. Go for it!This issue is ready for an implementation PR. Go for it!

Status: Open.

#15455 In bevyengine/bevy;

· maniwani opened on Sep 26, 2024

Add a <code>TimedCommands</code> <code>SystemParam</code> for easier delayed operations

A-ECSEntities, components, systems, and eventsEntities, components, systems, and events

A-TimeInvolves time keeping and reportingInvolves time keeping and reporting

C-UsabilityA targeted quality-of-life change that makes Bevy easier to useA targeted quality-of-life change that makes Bevy easier to use

D-ComplexQuite challenging from either a design or technical perspective. Ask for help!Quite challenging from either a design or technical perspective. Ask for help!

S-Ready-For-ImplementationThis issue is ready for an implementation PR. Go for it!This issue is ready for an implementation PR. Go for it!

Status: Open.

#15129 In bevyengine/bevy;

· ItsDoot opened on Sep 9, 2024

· 

0.17

Time-keeping broken with <code>UpdateMode::Reactive</code> (X11 and WASM)

A-TimeInvolves time keeping and reportingInvolves time keeping and reporting

A-WindowingPlatform-agnostic interface layer to run your app inPlatform-agnostic interface layer to run your app in

C-BugAn unexpected or incorrect behaviorAn unexpected or incorrect behavior

S-Needs-InvestigationThis issue requires detective work to figure out what's going wrongThis issue requires detective work to figure out what's going wrong

Status: Open.

#14682 In bevyengine/bevy;

· Azorlogh opened on Aug 9, 2024

Pausing the virtual clock stops event updates.

A-ECSEntities, components, systems, and eventsEntities, components, systems, and events

A-TimeInvolves time keeping and reportingInvolves time keeping and reporting

C-BugAn unexpected or incorrect behaviorAn unexpected or incorrect behavior

D-ModestA "normal" level of difficulty; suitable for simple features or challenging fixesA "normal" level of difficulty; suitable for simple features or challenging fixes

S-Ready-For-ImplementationThis issue is ready for an implementation PR. Go for it!This issue is ready for an implementation PR. Go for it!

Status: Open.

#14152 In bevyengine/bevy;

· brandon-reinhart opened on Jul 5, 2024

Provide a way to base Timer on some Time object

A-TimeInvolves time keeping and reportingInvolves time keeping and reporting

C-FeatureA new feature, making something new possibleA new feature, making something new possible

D-ComplexQuite challenging from either a design or technical perspective. Ask for help!Quite challenging from either a design or technical perspective. Ask for help!

X-ContentiousThere are nontrivial implications that should be thought throughThere are nontrivial implications that should be thought through

Status: Open.

#13420 In bevyengine/bevy;

· jrmoserbaltimore opened on May 18, 2024

Add a standardized way to track simulation time for interoperability

A-NetworkingSending data between clients, servers and machinesSending data between clients, servers and machines

A-TimeInvolves time keeping and reportingInvolves time keeping and reporting

C-FeatureA new feature, making something new possibleA new feature, making something new possible

X-ContentiousThere are nontrivial implications that should be thought throughThere are nontrivial implications that should be thought through

Status: Open.

#13306 In bevyengine/bevy;

· NiseVoid opened on May 9, 2024

Remove crossbeam-channel as a runtime dependency

A-AssetsLoad files from disk to use for things like images, models, and soundsLoad files from disk to use for things like images, models, and sounds

A-TimeInvolves time keeping and reportingInvolves time keeping and reporting

C-DependenciesA change to the crates that Bevy depends onA change to the crates that Bevy depends on

D-ModestA "normal" level of difficulty; suitable for simple features or challenging fixesA "normal" level of difficulty; suitable for simple features or challenging fixes

S-Waiting-on-AuthorThe author needs to make changes or address concerns before this can be mergedThe author needs to make changes or address concerns before this can be merged

Status: Open (in progress).

bevyengine/bevynumber 13048

#13048 In bevyengine/bevy;

· james7132 opened on Apr 21, 2024