Make Dealing with Dates a Little Easier
Does date time occur in the am or pm?
Change an object to a duration
Change an object to an interval
Change an object to a period
Convert an object to a date or date-time
Cyclic encoding of date-times
Get/set date component of a date-time
Converts a decimal to a date
Various date utilities
Convert a variety of date-time classes to POSIXlt and POSIXct
Changes the components of a date object
Get/set days component of a date-time
Get the number of days in the month of a date-time
Converts a date to a decimal of its year
Deprecated functions in the lubridate package
Get d aylight s avings t ime indicator of a date-time
Duration class
Create a duration object.
Fit a POSIXlt date-time to the timeline
Replace time zone to create new date-time
Format in ISO8601 character format
Provide a format for ISO8601 dates and times with the requested precis...
Guess possible date-times formats from a character vector
Internal page for hidden aliases
Parse periods with h our, m inute, and s econd components
Get/set hours component of a date-time
Interval class
Utilities for creation and manipulation of Interval objects
Is x a difftime object?
Is x a date-time object?
Is x a length of time?
Is a year a leap year?
Get local time from a date-time vector.
Dates and times made easy with lubridate
Efficient creation of date-times from numeric representations
Create a difftime object.
Get/set minutes component of a date-time
Get/set months component of a date-time
Add and subtract months to a date without exceeding the last day of th...
The current day and time
1970-01-01 UTC
User friendly date-time parsing functions
Period class
Create or parse period objects
Contrive a period to/from a given number of seconds
Various POSIX utilities
Computes attractive axis breaks for date-time data
Get the fiscal quarter and semester of a date-time
Convenience method to reclass dates post-modification.
Convenience method to reclass timespans post-modification.
Objects exported from other packages
Roll backward or forward a date the previous, current or next month
Round, floor and ceiling methods for date-time objects
Get/set seconds component of a date-time
Format dates and times based on human-friendly templates
Compute the exact length of a time span
Timespan class
Description of time span classes in lubridate
Get/set time zone component of a date-time
Get/set weeks component of a date-time
Get date-time in a different time zone
Does a date (or interval) fall within an interval?
Get/set years component of a date-time
Parse dates with y ear, m onth, and d ay components
Parse date-times with y ear, m onth, and d ay, h our, m inute, and s e...
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.
Useful links