--- title: .Format description: Formats built-in Hugo dates---`.Date`, `.PublishDate`, and `.Lastmod`---according to Go's layout string. godocref: https://golang.org/pkg/time/#example_Time_Format date: 2017-02-01 publishdate: 2017-02-01 lastmod: 2017-02-01 categories: [functions] menu: docs: parent: "functions" keywords: [dates,time] signature: [".Format FORMAT"] workson: [times] hugoversion: relatedfuncs: [dateFormat,now,Unix,time] deprecated: false aliases: [] toc: true --- `.Format` will format date values defined in your front matter and can be used as a property on the following [page variables][pagevars]: * `.PublishDate` * `.Date` * `.Lastmod` Assuming a key-value of `date: 2017-03-03` in a content file's front matter, your can run the date through `.Format` followed by a layout string for your desired output at build time: ``` {{ .PublishDate.Format "January 2, 2006" }} => March 3, 2017 ``` For formatting *any* string representations of dates defined in your front matter, see the [`dateFormat` function][dateFormat], which will still leverage the Go layout string explained below but uses a slightly different syntax. ## Go's Layout String Hugo templates [format your dates][time] via layout strings that point to a specific reference time: ``` Mon Jan 2 15:04:05 MST 2006 ``` While this may seem arbitrary, the numerical value of `MST` is `07`, thus making the layout string a sequence of numbers. Here is a visual explanation [taken directly from the Go docs][gdex]: ``` Jan 2 15:04:05 2006 MST => 1 2 3 4 5 6 -7 ``` ### Hugo Date and Time Templating Reference The following examples show the layout string followed by the rendered output. The examples were rendered and tested in [CST][] and all point to the same field in a content file's front matter: ``` date: 2017-03-03T14:15:59-06:00 ``` `.Date` (i.e. called via [page variable][pagevars]) : **Returns**: `2017-03-03 14:15:59 -0600 CST` `"Monday, January 2, 2006"` : **Returns**: `Friday, March 3, 2017` `"Mon Jan 2 2006"` : **Returns**: `Fri Mar 3 2017` `"January 2006"` : **Returns**: `March 2017` `"2006-01-02"` : **Returns**: `2017-03-03` `"Monday"` : **Returns**: `Friday` `"02 Jan 06 15:04 MST"` (RFC822) : **Returns**: `03 Mar 17 14:15 CST` `"02 Jan 06 15:04 -0700"` (RFC822Z) : **Returns**: `03 Mar 17 14:15 -0600` `"Mon, 02 Jan 2006 15:04:05 MST"` (RFC1123) : **Returns**: `Fri, 03 Mar 2017 14:15:59 CST` `"Mon, 02 Jan 2006 15:04:05 -0700"` (RFC1123Z) : **Returns**: `Fri, 03 Mar 2017 14:15:59 -0600` More examples can be found in Go's [documentation for the time package][timeconst]. ### Cardinal Numbers and Ordinal Abbreviations Spelled-out cardinal numbers (e.g. "one", "two", and "three") and ordinal abbreviations (i.e., with shorted suffixes like "1st", "2nd", and "3rd") are not currently supported: ``` {{.Date.Format "Jan 2nd 2006"}} ``` Hugo assumes you want to append `nd` as a string to the day of the month and outputs the following: ``` Mar 3nd 2017 ``` ### Use `.Local` and `.UTC` In conjunction with the [`dateFormat` function][dateFormat], you can also convert your dates to `UTC` or to local timezones: `{{ dateFormat "02 Jan 06 15:04 MST" .Date.UTC }}` : **Returns**: `03 Mar 17 20:15 UTC` `{{ dateFormat "02 Jan 06 15:04 MST" .Date.Local }}` : **Returns**: `03 Mar 17 14:15 CST` [CST]: https://en.wikipedia.org/wiki/Central_Time_Zone [dateFormat]: /functions/dateformat/ [gdex]: https://golang.org/pkg/time/#example_Time_Format [pagevars]: /variables/page/ [time]: https://golang.org/pkg/time/ [timeconst]: https://golang.org/pkg/time/#ANSIC