Become an expert in R — Interactive courses, Cheat Sheets, certificates and more!

lubridate

Make Dealing with Dates a Little Easier

Functions to work with date-times and time-spans: fast and user friendly parsing of date-time data, extraction and updating of components of a date-time (years, months, days, hours, minutes, and seconds), algebraic manipulation on date-time and time-span objects. The 'lubridate' package has a consistent and memorable syntax that makes working with dates easy and fun. Parts of the 'CCTZ' source code, released under the Apache 2.0 License, are included in this package. See <https://github.com/google/cctz> for more details.

Functions (66)

DateCoercion

Convert a variety of date-time classes to POSIXlt and POSIXct

DateTimeUpdate

Changes the components of a date object

Deprecated

Deprecated functions in the lubridate package

Duration-class

Duration class

Interval-class

Interval class

Period-class

Period class

Timespan-class

Timespan class

Does date time occur in the am or pm?

as.duration

Change an object to a duration

as.interval

Change an object to an interval

as.period

Change an object to a period

as_date

Convert an object to a date or date-time

cyclic_encoding

Cyclic encoding of date-times

date

Get/set date component of a date-time

date_decimal

Converts a decimal to a date

date_utils

Various date utilities

day

Get/set days component of a date-time

days_in_month

Get the number of days in the month of a date-time

decimal_date

Converts a date to a decimal of its year

dst

Get daylight savings time indicator of a date-time

duration

Create a duration object.

fit_to_timeline

Fit a POSIXlt date-time to the timeline

force_tz

Replace time zone to create new date-time

format_ISO8601

Format in ISO8601 character format

format_ISO8601_precision_check

Provide a format for ISO8601 dates and times with the requested precision.

guess_formats

Guess possible date-times formats from a character vector

hidden_aliases

Internal page for hidden aliases

hms

Parse periods with hour, minute, and second components

hour

Get/set hours component of a date-time

interval

Utilities for creation and manipulation of Interval objects

is.difftime

Is x a difftime object?

is.instant

Is x a date-time object?

is.timespan

Is x a length of time?

lakers

Lakers 2008-2009 basketball data set

leap_year

Is a year a leap year?

local_time

Get local time from a date-time vector.

lubridate-package

Dates and times made easy with lubridate

make_datetime

Efficient creation of date-times from numeric representations

make_difftime

Create a difftime object.

minute

Get/set minutes component of a date-time

month

Get/set months component of a date-time

mplus

Add and subtract months to a date without exceeding the last day of the new month

now

The current day and time

origin

1970-01-01 UTC

parse_date_time

User friendly date-time parsing functions

period

Create or parse period objects

period_to_seconds

Contrive a period to/from a given number of seconds

posix_utils

Various POSIX utilities

pretty_dates

Computes attractive axis breaks for date-time data

quarter

Get the fiscal quarter and semester of a date-time

reclass_date

Convenience method to reclass dates post-modification.

reclass_timespan

Convenience method to reclass timespans post-modification.

reexports

Objects exported from other packages

rollbackward

Roll backward or forward a date the previous, current or next month

round_date

Round, floor and ceiling methods for date-time objects

second

Get/set seconds component of a date-time

stamp

Format dates and times based on human-friendly templates

time_length

Compute the exact length of a time span

timespan

Description of time span classes in lubridate

Get/set time zone component of a date-time

week

Get/set weeks component of a date-time

with_tz

Get date-time in a different time zone

within-interval

Does a date (or interval) fall within an interval?

year

Get/set years component of a date-time

ymd

Parse dates with year, month, and day components

ymd_hms

Parse date-times with year, month, and day, hour, minute, and second components.

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

lubridate

Functions (66)

lubridate

We don't support your browser anymore