> For the complete documentation index, see [llms.txt](https://doc.sysdevmobile.com/kalipso/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://doc.sysdevmobile.com/kalipso/6.0/documentation/expressions/functions/date-functions/julian.md).

# Julian

Returns a Julian Day starting in the specified year. So it is the ordinal day number in the current year. For a Julian Date you can use DateDifference() function, starting in the day you want to consider as the beginning of the Julian Calendar.

### Parameters

* **Source Date** *\<string> -* This parameter must be in format YYYYMMDD.

### **Examples**

* *Example 1*

Julian("20210103")\
**Result** = 3