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hms

Lifecycle: stable rcc Codecov test coverage CRAN_Status_Badge

Overview

The hms package provides a simple class for storing durations or time-of-day values and displaying them in the hh:mm:ss format. This class is intended to simplify data exchange with databases, spreadsheets, and other data sources:

Installation

# The easiest way to get hms is to install the whole tidyverse:
install.packages("tidyverse")

# Alternatively, install just hms:
install.packages("hms")

# Or the the development version from GitHub:
# install.packages("devtools")
devtools::install_github("tidyverse/hms")

Usage

The following example showcases ways of using the hms class standalone or as a data frame column.

library(hms)

hms(56, 34, 12)
#> 12:34:56
as_hms(Sys.time())
#> 11:55:02.553476
parse_hms("12:34:56")
#> 12:34:56
as.POSIXct(hms(1))
#> [1] "1970-01-01 00:00:01 UTC"

data.frame(hours = 1:3, hms = hms(hours = 1:3))
#>   hours      hms
#> 1     1 01:00:00
#> 2     2 02:00:00
#> 3     3 03:00:00

Internal representation

Objects of the hms and its underlying difftime classes are stored as number of seconds since 00:00:00. Use as.numeric() and as_hms() to convert to and from numbers.

times <- parse_hms(c("00:00:00.25", "00:00:01", "00:01:30", "01:00:00"))
times
#> 00:00:00.25
#> 00:00:01.00
#> 00:01:30.00
#> 01:00:00.00
times_num <- as.numeric(times)
times_num
#> [1]    0.25    1.00   90.00 3600.00
as_hms(times_num)
#> 00:00:00.25
#> 00:00:01.00
#> 00:01:30.00
#> 01:00:00.00

Please note that the ‘hms’ project is released with a Contributor Code of Conduct. By contributing to this project, you agree to abide by its terms.

These binaries (installable software) and packages are in development.
They may not be fully stable and should be used with caution. We make no claims about them.