# Documentation for Item- and DateTime-Methods

**URL:** <https://community.openhab.org/t/documentation-for-item-and-datetime-methods/33869>\
**Category:** Tutorials & Examples\
**Tags:** rule, item, openhab2\
**Created:** [September 2, 2017, 8:43pm UTC](https://community.openhab.org/t/documentation-for-item-and-datetime-methods/33869 "2017-09-02T20:43:55Z")\
**Posts on this page:** 1\
**Showing post:** 2

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**Author:** ![KjetilA](https://community.openhab.org/user_avatar/community.openhab.org/kjetila/32/841_2.png) [@KjetilA](https://community.openhab.org/u/KjetilA)\
**Post date:** [September 2, 2017, 10:23pm UTC](https://community.openhab.org/t/documentation-for-item-and-datetime-methods/33869/2 "2017-09-02T22:23:00Z")

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Maybe the following could give you a few pointers?

> [@Type Conversions](https://community.openhab.org/t/type-conversions/32684):
>
> Attention: This article is now also available on the openHAB 2 documentation page. If you want to add improvements or additions, please do so there. [http://docs.openhab.org/configuration/rules-dsl.html#conversions](http://docs.openhab.org/configuration/rules-dsl.html#conversions)Interacting with Items in rules A frequent operation in rules is to calculate other values from Item states or compare Item states against other values or perform other operations that are either responses to changes in item states or intended to change the item state. For a complete…

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_[View the full topic](https://community.openhab.org/t/documentation-for-item-and-datetime-methods/33869)._