hms 0.4.0

Breaking changes

• as.hms.POSIXt() now defaults to the current time zone, the previous default was "UTC" and can be restored by calling pkgconfig::set_config("hms::default_tz", "UTC").

New features

• Pillar support, will display hms columns in tibbles in color on terminals
  that support it (#43).
• New round_hms() and trunc_hms() for rounding or truncating to a given multiple of seconds (#31).
• New parse_hms() and parse_hm() to parse strings in "HH:MM:SS" and "HH:MM" formats (#30).
• as.hms.POSIXt() gains tz argument, default "UTC" (#28).
• as.hms.character() and parse_hms() accept fractional seconds (#33).

Bug fixes

• hms() now works correctly if all four components (days, hours, minutes, seconds) are passed (#49).
• hms() creates a zero-length object of class hms that prints as "hms()".
• hms(integer()) and as.hms(integer()) both work and are identical to hms().
• Values with durations of over 10000 hours are now printed correctly (#48).
• c() now returns a hms (#41, @qgeissmann).

Documentation and error messages

• Fix and enhance examples in ?hms.
• Documentation is in Markdown format now.
• Improved error message if calling hms() with a character argument (#29).

v0.3

• Fix lubridate test for compatibility with 1.6.0 (#23, @vspinu).
• NA values are formatted as NA (#22).

v0.2

Minor fixes and improvements.

• Subsetting keeps hms class (#16).
• format.hms() right-justifies the output by padding with spaces from the left, as.character.hms() remains unchanged.
• Times larger than 24 hours or with split seconds are now formatted correctly (#12, #13).
• Sub-second part is printed with up to six digits, for even smaller values trailing zeros are shown (#17).

v0.1

First CRAN release.

• Values are stored as a numeric vector that contains the number of seconds
  since midnight.
  • Inherits from difftime class.
  • Updating units is a no-op, anything different from "secs" issues a warning.
• Supports construction from time values, coercion to and from various data
  types, and formatting.
  • Conversion from numeric treats input as seconds.
  • Negative times are formatted with a leading -.
• Can be used as a regular column in a data frame.
• Full test coverage.
  • Test for arithmetic with Date, POSIXt and hms classes.
  • Test basic compatibility with lubridate package (#5).
• Interface:
  • hms() (with rigorous argument checks)
  • as.hms() for character, numeric, POSIXct and POSIXlt
  • as.xxx.hms() for character, numeric (implicitly), POSIXct and
    POSIXlt
  • is.hms()
  • as.data.frame.hms() (forwards to as.data.frame.difftime())
  • format.hms()
  • print.hms() (returns unchanged input invisibly)