# Math - NOW variable not proposed

**URL:** <https://community.glideapps.com/t/math-now-variable-not-proposed/42753>\
**Category:** Ask for Help\
**Created:** [June 5, 2022, 10:53pm UTC](https://community.glideapps.com/t/math-now-variable-not-proposed/42753 "2022-06-05T22:53:06Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![Michael\_Weiss](https://sea2.discourse-cdn.com/flex002/user_avatar/community.glideapps.com/michael_weiss/32/35265_2.png) [@Michael\_Weiss](https://community.glideapps.com/u/Michael_Weiss)\
**Post date:** [June 5, 2022, 10:53pm UTC](https://community.glideapps.com/t/math-now-variable-not-proposed/42753/1 "2022-06-05T22:53:06Z")

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Hi! I’m trying to add a column to show the age of person based on their date of birth. I should be able to do it easily through a Math column, using the NOW variable minus the date of birth entered in another column.  
But for a weird reason, it seems Glide doesn’t recognize the NOW variable, and only offers as replacement the value from another existing column.  
Did I get anything wrong here?  
FYI this is my first app, I’m still under the free plan till I’m done with an MVP.

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**Author:** ![david](https://sea2.discourse-cdn.com/flex002/user_avatar/community.glideapps.com/david/32/62831_2.png) [@david](https://community.glideapps.com/u/david)\
**Post date:** [June 5, 2022, 10:57pm UTC](https://community.glideapps.com/t/math-now-variable-not-proposed/42753/2 "2022-06-05T22:57:40Z")

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Please show a screenshot of the replacement menu.

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**Author:** ![Robert\_Petitto](https://sea2.discourse-cdn.com/flex002/user_avatar/community.glideapps.com/robert_petitto/32/25193_2.png) [@Robert\_Petitto](https://community.glideapps.com/u/Robert_Petitto)\
**Post date:** [June 5, 2022, 10:59pm UTC](https://community.glideapps.com/t/math-now-variable-not-proposed/42753/3 "2022-06-05T22:59:59Z")

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Make sure you choose “Now” from the list of options

 ![CleanShot 2022-06-05 at 18.59.09@2x](https://us1.discourse-cdn.com/flex002/uploads/glideapps/original/3X/d/3/d3a15c1d6e9682dc64e453189129fd1b6281a39a.png)

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**Author:** ![Michael\_Weiss](https://sea2.discourse-cdn.com/flex002/user_avatar/community.glideapps.com/michael_weiss/32/35265_2.png) [@Michael\_Weiss](https://community.glideapps.com/u/Michael_Weiss)\
**Post date:** [June 5, 2022, 11:12pm UTC](https://community.glideapps.com/t/math-now-variable-not-proposed/42753/4 "2022-06-05T23:12:06Z")

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Thanks Robert! I was missing it, I need new glasses 😅

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**Author:** ![system](https://sea2.discourse-cdn.com/flex002/user_avatar/community.glideapps.com/system/32/53398_2.png) [@system](https://community.glideapps.com/u/system)\
**Post date:** [June 6, 2022, 11:12pm UTC](https://community.glideapps.com/t/math-now-variable-not-proposed/42753/5 "2022-06-06T23:12:36Z")

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