created: 20150117190213631
modified: 20150124214537000
tags: Concepts
title: Date Fields
type: text/vnd.tiddlywiki

Certain [[fields|TiddlerFields]] of a tiddler are used to store dates and times.

The two standard date fields are <<.field created>> and <<.field modified>>.

Values of date fields are 17-character strings:

* 4 digits for the year
* 2 digits for the month
* 2 digits for the day
* 2 digits for the hour
* 2 digits for the minute
* 2 digits for the second
* 3 digits for the millisecond

To avoid problems arising from differences of time zone, TiddlyWiki always uses [[UTC|http://en.wikipedia.org/wiki/Coordinated_Universal_Time]].

As an example, the <<.field created>> field of this tiddler has the value <<.value """<$view field="created"/>""">>.

Dates can be [[converted to other formats|DateFormat]] for display:

<$macrocall $name="wikitext-example-without-html"
src="""<$view field="created" format="date" template="DDD DDth MMM YYYY"/>""">