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dst

Get daylight savings time indicator of a date-time


Description

Date-time must be a POSIXct, POSIXlt, Date, chron, yearmon, yearqtr, zoo, zooreg, timeDate, xts, its, ti, jul, timeSeries, and fts objects.

Usage

dst(x)

Arguments

x

a date-time object

Details

A date-time's daylight savings flag can not be set because it depends on the date-time's year, month, day, and hour values.

Value

A logical. TRUE if DST is in force, FALSE if not, NA if unknown.

Examples

x <- ymd("2012-03-26")
dst(x)

lubridate

Make Dealing with Dates a Little Easier

v1.7.10
GPL (>= 2)
Authors
Vitalie Spinu [aut, cre], Garrett Grolemund [aut], Hadley Wickham [aut], Ian Lyttle [ctb], Imanuel Costigan [ctb], Jason Law [ctb], Doug Mitarotonda [ctb], Joseph Larmarange [ctb], Jonathan Boiser [ctb], Chel Hee Lee [ctb], Google Inc. [ctb, cph]
Initial release

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