Date and Time Functions for Public Health Purposes

Documentation for package ‘cstime’ version 2025.10.13

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-- D --

dates_by_isoyearweek	Dates of different days within isoyearweeks
date_to_calmonth_c	Date -> calmonth (character)
date_to_calmonth_c.character	Date -> calmonth (character)
date_to_calmonth_c.Date	Date -> calmonth (character)
date_to_calmonth_c.default	Date -> calmonth (character)
date_to_calmonth_n	Date -> calmonth (numeric)
date_to_calmonth_n.character	Date -> calmonth (numeric)
date_to_calmonth_n.Date	Date -> calmonth (numeric)
date_to_calmonth_n.default	Date -> calmonth (numeric)
date_to_calyearmonth_c	Date -> calyearmonth (character)
date_to_calyearmonth_c.character	Date -> calyearmonth (character)
date_to_calyearmonth_c.Date	Date -> calyearmonth (character)
date_to_calyearmonth_c.default	Date -> calyearmonth (character)
date_to_calyear_c	Date -> calyear (character)
date_to_calyear_c.character	Date -> calyear (character)
date_to_calyear_c.Date	Date -> calyear (character)
date_to_calyear_c.default	Date -> calyear (character)
date_to_calyear_n	Date -> calyear (numeric)
date_to_calyear_n.character	Date -> calyear (numeric)
date_to_calyear_n.Date	Date -> calyear (numeric)
date_to_calyear_n.default	Date -> calyear (numeric)
date_to_isoquarter_c	ISO quarter (character) from Date object
date_to_isoquarter_c.character	ISO quarter (character) from Date object
date_to_isoquarter_c.Date	ISO quarter (character) from Date object
date_to_isoquarter_c.default	ISO quarter (character) from Date object
date_to_isoquarter_n	ISO quarter (numeric) from Date object
date_to_isoquarter_n.character	ISO quarter (numeric) from Date object
date_to_isoquarter_n.Date	ISO quarter (numeric) from Date object
date_to_isoquarter_n.default	ISO quarter (numeric) from Date object
date_to_isoweek_c	ISO week (character) from Date object
date_to_isoweek_c.character	ISO week (character) from Date object
date_to_isoweek_c.Date	ISO week (character) from Date object
date_to_isoweek_c.default	ISO week (character) from Date object
date_to_isoweek_n	ISO week (numeric) from Date object
date_to_isoweek_n.character	ISO week (numeric) from Date object
date_to_isoweek_n.Date	ISO week (numeric) from Date object
date_to_isoweek_n.default	ISO week (numeric) from Date object
date_to_isoyearquarter_c	ISO year and quarter (character) from Date object
date_to_isoyearquarter_c.character	ISO year and quarter (character) from Date object
date_to_isoyearquarter_c.Date	ISO year and quarter (character) from Date object
date_to_isoyearquarter_c.default	ISO year and quarter (character) from Date object
date_to_isoyearweek_c	ISO year and week (character) from Date object
date_to_isoyearweek_c.character	ISO year and week (character) from Date object
date_to_isoyearweek_c.Date	ISO year and week (character) from Date object
date_to_isoyearweek_c.default	ISO year and week (character) from Date object
date_to_isoyear_c	ISO year (character) from Date object
date_to_isoyear_c.character	ISO year (character) from Date object
date_to_isoyear_c.Date	ISO year (character) from Date object
date_to_isoyear_c.default	ISO year (character) from Date object
date_to_isoyear_n	ISO year (numeric) from Date object
date_to_isoyear_n.character	ISO year (numeric) from Date object
date_to_isoyear_n.Date	ISO year (numeric) from Date object
date_to_isoyear_n.default	ISO year (numeric) from Date object
date_to_seasonweek_n	Date to season week.
date_to_season_c	Date to season.

-- I --

isoweek_to_seasonweek_n	ISO week to season week (numeric). Season week 1 is natural week 35.
isoweek_to_seasonweek_n.character	ISO week to season week (numeric). Season week 1 is natural week 35.
isoweek_to_seasonweek_n.default	ISO week to season week (numeric). Season week 1 is natural week 35.
isoweek_to_seasonweek_n.numeric	ISO week to season week (numeric). Season week 1 is natural week 35.
isoyearweek_to_isoquarter_c	ISO yearweek to quarter (character)
isoyearweek_to_isoquarter_c.character	ISO yearweek to quarter (character)
isoyearweek_to_isoquarter_c.default	ISO yearweek to quarter (character)
isoyearweek_to_isoquarter_n	ISO yearweek to quarter (numeric)
isoyearweek_to_isoquarter_n.character	ISO yearweek to quarter (numeric)
isoyearweek_to_isoquarter_n.default	ISO yearweek to quarter (numeric)
isoyearweek_to_isoweek_c	ISO yearweek to week (character)
isoyearweek_to_isoweek_c.character	ISO yearweek to week (character)
isoyearweek_to_isoweek_c.default	ISO yearweek to week (character)
isoyearweek_to_isoweek_n	ISO yearweek to week (numeric)
isoyearweek_to_isoweek_n.character	ISO yearweek to week (numeric)
isoyearweek_to_isoweek_n.default	ISO yearweek to week (numeric)
isoyearweek_to_isoyearquarter_c	ISO yearweek to ISO yearquarter (character)
isoyearweek_to_isoyearquarter_c.character	ISO yearweek to ISO yearquarter (character)
isoyearweek_to_isoyearquarter_c.default	ISO yearweek to ISO yearquarter (character)
isoyearweek_to_isoyear_c	ISO yearweek to year (character)
isoyearweek_to_isoyear_c.character	ISO yearweek to year (character)
isoyearweek_to_isoyear_c.default	ISO yearweek to year (character)
isoyearweek_to_isoyear_n	ISO yearweek to year (numeric)
isoyearweek_to_isoyear_n.character	ISO yearweek to year (numeric)
isoyearweek_to_isoyear_n.default	ISO yearweek to year (numeric)
isoyearweek_to_last_date	Last date in ISO yearweek
isoyearweek_to_last_date.character	Last date in ISO yearweek
isoyearweek_to_last_date.default	Last date in ISO yearweek
isoyearweek_to_seasonweek_n	ISO yearweek to season week (numeric). Season week 1 is ISO week 35.
isoyearweek_to_season_c	ISO yearweek to season.
isoyearweek_to_season_c.character	ISO yearweek to season.
isoyearweek_to_season_c.default	ISO yearweek to season.
isoyear_to_last_date	Last Sunday in ISO year
isoyear_to_last_date.character	Last Sunday in ISO year
isoyear_to_last_date.default	Last Sunday in ISO year
isoyear_to_last_date.numeric	Last Sunday in ISO year
isoyear_to_last_isoweek_n	Last ISO week (numeric) in ISO year
isoyear_to_last_isoweek_n.character	Last ISO week (numeric) in ISO year
isoyear_to_last_isoweek_n.default	Last ISO week (numeric) in ISO year
isoyear_to_last_isoweek_n.numeric	Last ISO week (numeric) in ISO year
isoyear_to_last_isoyearweek_c	Last ISO yearweek (character) in ISO year
isoyear_to_last_isoyearweek_c.character	Last ISO yearweek (character) in ISO year
isoyear_to_last_isoyearweek_c.default	Last ISO yearweek (character) in ISO year
isoyear_to_last_isoyearweek_c.numeric	Last ISO yearweek (character) in ISO year

-- K --

keep_sundays	keep_sundays
keep_sundays_and_latest_date	keep_sundays_and_latest_date
keep_sundays_and_latest_date_internal	keep_sundays_and_latest_date_internal

-- N --

nor_workdays_by_date	Norwegian workdays and holidays by date
nor_workdays_by_isoyearweek	Norwegian workdays and holidays by isoyearweek
now_c	Current time as character

-- S --

seasonweek_to_isoweek_c	Season week to ISO week (character). Season week 1 is ISO week 35.
seasonweek_to_isoweek_c.default	Season week to ISO week (character). Season week 1 is ISO week 35.
seasonweek_to_isoweek_c.numeric	Season week to ISO week (character). Season week 1 is ISO week 35.
seasonweek_to_isoweek_n	Season week to ISO week (numeric). Season week 1 is ISO week 35.
seasonweek_to_isoweek_n.default	Season week to ISO week (numeric). Season week 1 is ISO week 35.
seasonweek_to_isoweek_n.numeric	Season week to ISO week (numeric). Season week 1 is ISO week 35.
season_to_last_date	Last date in season
season_to_last_date.character	Last date in season
season_to_last_date.default	Last date in season