# How to convert unix timestamp

**URL:** <https://forum.inductiveautomation.com/t/how-to-convert-unix-timestamp/55172>\
**Category:** Ignition\
**Created:** [January 19, 2022, 3:25pm UTC](https://forum.inductiveautomation.com/t/how-to-convert-unix-timestamp/55172 "2022-01-19T15:25:05Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![MED](https://avatars.discourse-cdn.com/v4/letter/m/9d8465/32.png) [@MED](https://forum.inductiveautomation.com/u/MED)\
**Post date:** [January 19, 2022, 3:25pm UTC](https://forum.inductiveautomation.com/t/how-to-convert-unix-timestamp/55172/1 "2022-01-19T15:25:06Z")

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I use Date Time Input to select start/end date which linked to PLC tags.  
My problem was that ignition display date as Unix milliseconds but my PLC display it as UNIX seconds.  
 ![image](https://us1.discourse-cdn.com/inductiveautomation/original/3X/6/d/6d874401524063232c80a294d8afb2a52fa03ef8.png)

So, how can I convert Unix milliseconds to Unix seconds before using in my program ?

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**Author:** ![JordanCClark](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/jordancclark/32/83362_2.png) [@JordanCClark](https://forum.inductiveautomation.com/u/JordanCClark)\
**Post date:** [January 19, 2022, 3:43pm UTC](https://forum.inductiveautomation.com/t/how-to-convert-unix-timestamp/55172/2 "2022-01-19T15:43:00Z")

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You can try scaling your tag.

 ![image](https://us1.discourse-cdn.com/inductiveautomation/original/3X/4/c/4c75e24a11eba665c73273876155442b870a5b7b.png)

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**Author:** ![pturmel](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/pturmel/32/3295_2.png) [@pturmel](https://forum.inductiveautomation.com/u/pturmel)\
**Post date:** [January 19, 2022, 3:53pm UTC](https://forum.inductiveautomation.com/t/how-to-convert-unix-timestamp/55172/3 "2022-01-19T15:53:34Z")

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I would use a derived tag that multiplied/divided by 1000. (Plus conversion to/from java.util.Date.)

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<div class="post-metadata">

**Author:** ![MED](https://avatars.discourse-cdn.com/v4/letter/m/9d8465/32.png) [@MED](https://forum.inductiveautomation.com/u/MED)\
**Post date:** [January 19, 2022, 3:55pm UTC](https://forum.inductiveautomation.com/t/how-to-convert-unix-timestamp/55172/4 "2022-01-19T15:55:04Z")

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Thank you JordanCClark for your reply!  
I already tried it but not working. It works only one time but when I select new date my value return in milliseconds.