Change an object to a duration.
Guess formats from the supplied date-time character vector.
Test if two intervals share an endpoint
Is x a date-time object?
Get the number of days in the month of a date-time.
Fit a POSIXlt date-time to the timeline
Quickly create exact time spans.
Access and change the end date of an interval
Extract the intervals within a vector of date-times
Get the length of an interval in seconds
Is x a POSIXct or POSIXlt object?
Is x a Date object?
Round date-times down.
Convenience method to reclass timespans post-modification.
Get the fiscal quarter of a date-time.
Convert a variety of date-time classes to POSIXlt and POSIXct
Create a duration object.
Ensures all intervals in an interval object are positive
Interval class
Duration class
Contrive a period from a given number of seconds
Is x a difftime object?
Is x a duration object?
Create a period with the specified number of hours and minutes
Change an object to a period.
Changes the components of a date object
1970-01-01 UTC
format_offset
Get/set years component of a date-time.
Add epochs to dates
Get/set seconds component of a date-time.
Parse dates according to the order in that year, month, and day elements
appear in the input vector.
Round date-times up.
Access and change the start date of an interval
Timespan class
Is x a length of time?
Change an object to an interval.
Get Daylight Savings Time indicator of a date-time.
Format dates and times based on human-friendly templates.
Get date-time in a different time zone
Create a period object.
Is x an Interval object?
Parse dates that have hours, minutes, or seconds elements.
Replace time zone to create new date-time
Get/set days component of a date-time.
Quickly create relative timespans.
Dates and times made easy with lubridate
Makes a difftime object from a given number of seconds
Parse character and numeric date-time vectors with user friendly order
formats.
Converts a decimal to a date.
Test if two intervals overlap
The current date
The current time in your local timezone
Computes attractive axis breaks for date-time data
Names of available time zones
Get/set hours component of a date-time.
Create a period object.
Get/set days component of a date-time.
Period class
Flip the direction of an interval
Create a period with the specified hours, minutes, and seconds
Convert a period to the number of seconds it appears to represent
Get/set months component of a date-time.
Rounding for date-times.
Is x a period object?
Create a period with the specified number of minutes and seconds
Add and subtract months to a date without exceeding the last day of the new month
Shift an interval along the timeline
Lubridate format orders used in stamp
Is a year a leap year?
Create a duration object.
Create a difftime object.
Quickly create common epoch objects
Get/set time zone component of a date-time.
The current time
Convenience method to reclass dates post-modification.
Description of time span classes in lubridate.
Tests whether a date or interval falls within an interval
Get/set weeks component of a date-time.
Create an epoch object
Get/set minutes component of a date-time.
Create an interval object.
Does date time occur in the am or pm?
Converts a date to a decimal of its year.
Lakers 2008-2009 basketball data set
Roll back date to last day of previous month