# Variable\_dt - please help!

**URL:** <https://forum.defold.com/t/variable-dt-please-help/11173>\
**Category:** Questions\
**Created:** [September 2, 2017, 10:17am UTC](https://forum.defold.com/t/variable-dt-please-help/11173 "2017-09-02T10:17:05Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![tobi](https://forum-defold.b-cdn.net/letter_avatar_proxy/v4/letter/t/b9e5f3/32.png) [@tobi](https://forum.defold.com/u/tobi)\
**Post date:** [September 2, 2017, 10:17am UTC](https://forum.defold.com/t/variable-dt-please-help/11173/1 "2017-09-02T10:17:05Z")

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how does variable\_dt work please?

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**Author:** ![sicher](https://forum-defold.b-cdn.net/user_avatar/forum.defold.com/sicher/32/8_2.png) [@sicher](https://forum.defold.com/u/sicher)\
**Post date:** [September 2, 2017, 10:19am UTC](https://forum.defold.com/t/variable-dt-please-help/11173/2 "2017-09-02T10:19:59Z")

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See this thread:

> [@Delta time is wrong (SOLVED)](https://forum.defold.com/t/delta-time-is-wrong-solved/11005/2):
>
> There’s a [variable\_dt option in game.project](https://www.defold.com/manuals/project-settings/#_display). If the value is unchecked the dt will always be 1/60, not matter how fast or slow your frames are. If the variable\_dt is checked the dt value passed to update will reflect actual frame time and a frame that takes longer to complete will have a dt larger than 1/60.