# R: Julian Counts and Calendar Atoms

julian {timeDate} | R Documentation

## Julian Counts and Calendar Atoms

### Description

Returns Julian day counts, date/time atoms from a 'timeDate' object, and extracts month atoms from a 'timeDate' object.

### Usage

    ## S4 method for signature 'timeDate'
    julian(x, origin = timeDate("1970-01-01"),
        units = c("auto", "secs", "mins", "hours", "days", "weeks"),
        zone = NULL, FinCenter = NULL, ...)

    ## S4 method for signature 'timeDate'
    atoms(x, ...)

    ## S4 method for signature 'timeDate'
    months(x, abbreviate = NULL)

### Arguments

`x` | an object of class `timeDate`.
`origin` | a length-one object inheriting from class `"timeDate"` setting the origin for the julian counter.
`units` | a character string denoting the date/time units in which the results are desired.
`zone` | the time zone or financial center where the data were recorded.
`FinCenter` | a character with the the location of the financial center named as "continent/city".
`abbreviate` | currently not used.
`...` | arguments passed to other methods.

### Value

`julian` returns a `timeDate` object as a Julian count.

`atoms` and `months` extrac from a `timeDate` object the calendar atoms, i.e. the year, month, day, and optionally hour, minute and second.

### Examples

    ## julian -
       tC = timeCalendar()
       julian(tC)[1:3]

    ## atoms -
       atoms(tC)

    ## months -
       months(tC)

[Package timeDate version 3043.102 Index]