> For the complete documentation index, see [llms.txt](https://docs.aeroai.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.aeroai.io/siega-web-features/other-features/atmosphere-timeslider.md).
# Atmosphere TimeSlider
The Atmosphere TimeSlider lets you change the time of day in the scene to see how the lighting and the sky look at any hour. It is useful for sun studies,
picking the right look for a screenshot, or just confirming that a feature reads well in both day and night light.
### How to Use
Click the clock button in the top toolbar to open the time panel at the bottom of the screen. The button label shows the current time, and the icon
switches between a sun and a moon depending on whether the time is set to day or night hours.
### Drag the slider
The bottom panel is labeled "Atmosphere Time" and shows a horizontal slider that runs across a full 24 hour day. Drag the yellow handle left and right to
set the hour. The current time shows on the left side of the slider in a 12 hour format with "AM" or "PM".
Below the slider are four shortcut buttons for the most common times:
* "Sunrise" sets the time to 6 AM.
* "Noon" sets the time to 12 PM.
* "Sunset" sets the time to 6 PM.
* "Midnight" sets the time to 12 A
### What changes in the scene
As you move the slider the viewer updates the sun position and the sky brightness in real time. Around midday the sky is at its brightest and shadows fall
short. Toward sunrise and sunset the sky shifts darker. At midnight the sky drops to its darkest setting and the scene reads as a night view.
---
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