Make working with dates in R just that little bit easier
as_datetime() accepts multiple formats in format argument, just like as_date() does.ymd_hm on locales where p format is not defined.as_date("character") to work correctly with formats that include extra characters.make_dateime() when units exceed their maximal values.roll argument to updating and time-zone manipulation functions is deprecated in favor of a new roll_dst parameter.as_date with character inputs accepts multiple formats in format argument. When format is supplied, the input string is parsed with parse_date_time instead of the old strptime.as.integer method for Duration, Period and Interval classes.year<-, month<- etc. accessors truly generic. In order to make them work with arbitrary class XYZ, it's enough to define a reclass_date.XYZ method.year<-, month<- etc. accessors for data.table's IDate and ITime objects.week_start argument in all lubridate functions now accepts full and abbreviated names of the days of the week.wday<- can be a string either in English or as provided by the current locale.unit argument for rounding to a vector of date-times.as.duration now allows for full roundtrip duration -> as.character -> as.duration
stamp gained new argument exact=FALSE to indicate whether orders argument is an exact strptime formats string or not.%within method with signature (Interval, list), which was documented but not implemented.format_ISO8601() gained a new option usetz="Z" to format time zones with a "Z" and convert the time to the UTC time zone.Period objects in rounding functions is explicitly documented.%within% now correctly works with flipped intervalsas_datetime() now preserves the time zone of the POSIXt input.fast_strptime() and parse_date_time2() now have a recycled isdst field.train argument in parse_date_time now takes effect. It was previously ignored.c.POSIXct and c.Date on empty single POSIXct and Date vectors.POSIXct,POSIXlt) heterogeneous concatenation.j now works on numeric inputs.stamp() now correctly errors when no formats could be guessed.tzs = "UTC") now returns a POSIXct.lubridate is now relying on timechange package for update and time-zone computation. Google's CCTZ code is no longer part of the package.lubridate's updating logic is now built on top of timechange package.c.Period, c.Duration and c.Interval from S4 to S3.fast_strptime() and parse_date_time2() now accept multiple formats and apply them in turn%z formatdyears(1) == years(1) is now TRUE.dmonths() to complement other duration constructors.duration() constructor now accepts months and years arguments.format_ISO8601() methods.as_date() now ignores the tz argumentforce_tz(), with_tz(), tz<- convert dates to date-timesNA_Date_ and NA_POSIXct_ which parallel built-in primitive constants.Date() and POSIXct() which parallel built-in primitive constructors.as_datetime() always returns a POSIXct()
generics dependency package.-.%within% throws more meaningful messages when applied on unsupported classesfiscal_starts.leap_year() works with objects supported by year().duration()/period()/make_difftime() work with repeated unitsc.Period concatenation doesn't fail with empty components.exact = TRUE argument in parse_date_time2, which was so far ignored.%within% now accepts a list of intervals, in which case an instant is checked if it occurs within any of the supplied intervals.%% on intervals relies on %m+ arithmetic and doesn't produce NAs when intermediate computations result in non-existent dates.tz() always returns "UTC" when tzone attribute cannot be inferred.interval constructor accepts start and end character vectors in ISO 8601 format