# Start Date On History Alarm Status Table

**URL:** <https://forum.inductiveautomation.com/t/start-date-on-history-alarm-status-table/8538>\
**Category:** Ignition\
**Created:** [June 9, 2014, 6:39pm UTC](https://forum.inductiveautomation.com/t/start-date-on-history-alarm-status-table/8538 "2014-06-09T18:39:46Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![ketsk25](https://avatars.discourse-cdn.com/v4/letter/k/73ab20/32.png) [@ketsk25](https://forum.inductiveautomation.com/u/ketsk25)\
**Post date:** [June 9, 2014, 6:39pm UTC](https://forum.inductiveautomation.com/t/start-date-on-history-alarm-status-table/8538/1 "2014-06-09T18:39:46Z")

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I can’t seem to figure something out and was wondering if someone could help. I have alarms I am monitoring on a main window with the Alarm Status Table. I was wondering if there is an expression I could use that would make the Start Date to be exactly 6 months from the End date in which I have now() as the expression for the end date. For example if End Date Is 06/09/2014 14:40:53 how I could make the Start Date update Automatically to 01/09/2014 14:40:53. Any help is Appreciated. I have version 7.6.6 of the ignition software. Thanks.

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**Author:** ![jpark](https://avatars.discourse-cdn.com/v4/letter/j/a88e57/32.png) [@jpark](https://forum.inductiveautomation.com/u/jpark)\
**Post date:** [June 9, 2014, 8:31pm UTC](https://forum.inductiveautomation.com/t/start-date-on-history-alarm-status-table/8538/2 "2014-06-09T20:31:05Z")

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Bind the start date to:

```auto
dateArithmetic(ENDDATE,6,"Month")
```