# Moon phases

**URL:** <https://forum.kirupa.com/t/moon-phases/633526>\
**Category:** flash\
**Created:** [July 25, 2015, 12:02pm UTC](https://forum.kirupa.com/t/moon-phases/633526 "2015-07-25T12:02:16Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Hvdstaal](https://avatars.discourse-cdn.com/v4/letter/h/7cd45c/32.png) [@Hvdstaal](https://forum.kirupa.com/u/Hvdstaal)\
**Post date:** [July 25, 2015, 12:02pm UTC](https://forum.kirupa.com/t/moon-phases/633526/1 "2015-07-25T12:02:16Z")

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Is it possible to make a timer count up from a specific day, let’s say 1970-01-07, to see how many days have passed?  
I need this, because i’m recreating moon phases and every 3,69 days it has to switch frames and know on which frame it has to be.

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<div class="post-metadata">

**Author:** ![krilnon](https://yyz1.discourse-cdn.com/flex011/user_avatar/forum.kirupa.com/krilnon/32/34_2.png) [@krilnon](https://forum.kirupa.com/u/krilnon)\
**Post date:** [July 26, 2015, 11:50pm UTC](https://forum.kirupa.com/t/moon-phases/633526/2 "2015-07-26T23:50:40Z")

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```javascript
(new Date - new Date(1970,0,7)) / (1000 * 60 * 60 * 24)

```