# \[WIP\] Ephemeris Documentation

**URL:** <https://community.openhab.org/t/wip-ephemeris-documentation/84536>\
**Category:** Documentation\
**Created:** [October 30, 2019, 5:12pm UTC](https://community.openhab.org/t/wip-ephemeris-documentation/84536 "2019-10-30T17:12:00Z")\
**Posts on this page:** 1\
**Showing post:** 28

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**Author:** ![cweitkamp](https://community.openhab.org/user_avatar/community.openhab.org/cweitkamp/32/56864_2.png) [@cweitkamp](https://community.openhab.org/u/cweitkamp)\
**Post date:** [February 25, 2020, 7:47pm UTC](https://community.openhab.org/t/wip-ephemeris-documentation/84536/28 "2020-02-25T19:47:56Z")

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Hi @jcosta46,

Unfortunately exactly the `isBankHoliday(<offset>, <file>)` action is broken in OH 2.5.x and will probably not working before OH 3.0 - even if it is already fixed in our code base (see [Ephemeris: isBankHoliday(offset,filename) ignores filename · Issue #1374 · openhab/openhab-core · GitHub](https://github.com/openhab/openhab-core/issues/1374)).

A small workaround is to use `isBankHoliday(<datetime>, <file>)` and set `ZonedDateTime.now().plusDays(<offset>)` for `<datetime>`.

I think we should add a note to the docs.

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_[View the full topic](https://community.openhab.org/t/wip-ephemeris-documentation/84536)._