Cldr.Calendar.Julian (Cldr Calendars v1.14.0) View Source

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Functions

Identifies that this calendar is month based.

Defines the CLDR calendar type for this calendar.

Returns a {year, month, day} calculated from the number of iso_days.

Returns the number of days since the calendar epoch for a given year-month-day

Calculates the day and era from the given year, month, and day.

Calculates the day of the week from the given year, month, and day. It is an integer from 1 to 7, where 1 is Monday and 7 is Sunday.

Calculates the day of the year from the given year, month, and day.

Returns how many days there are in the given year-month.

Returns the number days in a a week.

Returns the number days in a given year.

Calculates the ISO week of the year from the given year, month, and day. It is an integer from 1 to 53.

Returns if the given year is a leap year.

Returns a Date.Range.t representing a given month of a year.

Calculates the month of the year from the given year, month, and day. It is an integer from 1 to 12.

Converts the Calendar.iso_days/0 format to the datetime format specified by this calendar.

Calculates the number of period in a given year. A period corresponds to a month in month-based calendars and a week in week-based calendars..

Adds an increment number of date_parts to a year-month-day.

Returns a Date.Range.t representing a given quarter of a year.

Calculates the quarter of the year from the given year, month, and day. It is an integer from 1 to 4.

Determines if the date given is valid according to this calendar.

Returns a Date.Range.t representing a given week of a year.

Calculates the week of the year from the given year, month, and day. It is an integer from 1 to 53.

Calculates the week of the year from the given year, month, and day. It is an integer from 1 to 53.

Returns a Date.Range.t representing a given year.

Calculates the year and era from the given year. The ISO calendar has two eras: the current era which starts in year 1 and is defined as era "1". And a second era for those years less than 1 defined as era "0".

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Specs

day() :: 1..31

Specs

month() :: 1..12

Specs

year() :: -9999..-1 | 1..9999

Link to this section Functions

Identifies that this calendar is month based.

Defines the CLDR calendar type for this calendar.

This type is used in support of Cldr.Calendar.localize/3. Currently only :gregorian is supported.

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date_from_iso_days(iso_days)

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Returns a {year, month, day} calculated from the number of iso_days.

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date_to_iso_days(year, month, day)

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Returns the number of days since the calendar epoch for a given year-month-day

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day_of_era(year, month, day)

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Specs

day_of_era(year(), month(), day()) :: {day :: pos_integer(), era :: 0..1}

Calculates the day and era from the given year, month, and day.

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day_of_week(year, month, day, atom)

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Specs

day_of_week(year(), month(), day(), 1..7 | :default) ::
  {Calendar.day_of_week(), first_day_of_week :: non_neg_integer(),
   last_day_of_week :: non_neg_integer()}

Calculates the day of the week from the given year, month, and day. It is an integer from 1 to 7, where 1 is Monday and 7 is Sunday.

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day_of_year(year, month, day)

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Specs

day_of_year(year(), month(), day()) :: 1..366

Calculates the day of the year from the given year, month, and day.

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days_in_month(year, month)

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Specs

days_in_month(year(), month()) :: 28..31

Returns how many days there are in the given year-month.

Returns the number days in a a week.

Returns the number days in a given year.

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iso_week_of_year(year, month, day)

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Specs

iso_week_of_year(year(), month(), day()) :: {:error, :not_defined}

Calculates the ISO week of the year from the given year, month, and day. It is an integer from 1 to 53.

Specs

leap_year?(year()) :: boolean()

Returns if the given year is a leap year.

Returns a Date.Range.t representing a given month of a year.

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month_of_year(year, month, day)

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Specs

month_of_year(year(), month(), day()) :: month()

Calculates the month of the year from the given year, month, and day. It is an integer from 1 to 12.

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naive_datetime_from_iso_days(arg)

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Specs

Converts the Calendar.iso_days/0 format to the datetime format specified by this calendar.

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naive_datetime_to_iso_days(year, month, day, hour, minute, second, microsecond)

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Specs

Returns the Calendar.iso_days/0 format of the specified date.

Calculates the number of period in a given year. A period corresponds to a month in month-based calendars and a week in week-based calendars..

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plus(year, month, day, date_part, increment, options \\ [])

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Adds an increment number of date_parts to a year-month-day.

date_part can be :quarters or:months.

Returns a Date.Range.t representing a given quarter of a year.

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quarter_of_year(year, month, day)

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Specs

quarter_of_year(year(), month(), day()) :: 1..4

Calculates the quarter of the year from the given year, month, and day. It is an integer from 1 to 4.

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valid_date?(year, month, day)

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Determines if the date given is valid according to this calendar.

Returns a Date.Range.t representing a given week of a year.

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week_of_month(year, month, day)

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Specs

week_of_month(year(), month(), day()) ::
  {pos_integer(), pos_integer()} | {:error, :not_defined}

Calculates the week of the year from the given year, month, and day. It is an integer from 1 to 53.

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week_of_year(year, month, day)

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Specs

week_of_year(year(), month(), day()) :: {:error, :not_defined}

Calculates the week of the year from the given year, month, and day. It is an integer from 1 to 53.

Returns a Date.Range.t representing a given year.

Specs

year_of_era(year()) :: {year(), era :: 0..1}

Calculates the year and era from the given year. The ISO calendar has two eras: the current era which starts in year 1 and is defined as era "1". And a second era for those years less than 1 defined as era "0".