# Is there an event detecting the change of the time in time sequence browser?

**URL:** <https://discourse.slicer.org/t/is-there-an-event-detecting-the-change-of-the-time-in-time-sequence-browser/19055>\
**Category:** Support\
**Created:** [August 4, 2021, 12:38pm UTC](https://discourse.slicer.org/t/is-there-an-event-detecting-the-change-of-the-time-in-time-sequence-browser/19055 "2021-08-04T12:38:04Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![slicer](https://avatars.discourse-cdn.com/v4/letter/s/8c91f0/32.png) [@slicer](https://discourse.slicer.org/u/slicer)\
**Post date:** [August 4, 2021, 12:38pm UTC](https://discourse.slicer.org/t/is-there-an-event-detecting-the-change-of-the-time-in-time-sequence-browser/19055/1 "2021-08-04T12:38:04Z")

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Operating system: Windows 10  
Slicer version: 4.11

Is there an event detecting the change of the time in time sequence browser? I want to build my own extension and how can I detect the real-time change of the time value for a sequence file in python?

Hope for your help.

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**Author:** ![pieper](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/pieper/32/8_2.png) [@pieper](https://discourse.slicer.org/u/pieper)\
**Post date:** [August 4, 2021, 2:47pm UTC](https://discourse.slicer.org/t/is-there-an-event-detecting-the-change-of-the-time-in-time-sequence-browser/19055/2 "2021-08-04T14:47:22Z")

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You probably want something like this:

> <https://github.com/pieper/SlicerAnimator/blob/master/Animator/Animator.py#L668>