Cldr.Calendar.EthiopicAmeteAlem (ex_cldr_calendars_ethiopic v1.1.0)
View SourceImplementation of the Ethiopic Amete Alem calendar.
Summary
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 month.
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.
Returns the number of months in a given year
.
Converts the Calendar.iso_days/0
format to the datetime format specified by this calendar.
Returns the Calendar.iso_days/0
format of the specified date.
Returns the number of periods 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_part
s
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".
Types
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
.
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
@spec day_of_era(year(), month(), day()) :: {day :: pos_integer(), era :: 0..1}
Calculates the day and era from the given year
, month
, and day
.
@spec day_of_week(year(), month(), day(), :default | atom()) :: {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.
Calculates the day of the year from the given year
, month
, and day
.
@spec days_in_month(Calendar.month()) :: Calendar.month() | {:ambiguous, Range.t() | [pos_integer()]} | {:error, :undefined}
Returns how many days there are in the given month.
Must be implemented in derived calendars because we cannot know what the calendar format is.
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.
Since this calendar is observational we calculate the start of successive years and then calcualate the difference in days to determine if its 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.
Returns the number of months in a given year
.
@spec naive_datetime_from_iso_days(Calendar.iso_days()) :: {Calendar.year(), Calendar.month(), Calendar.day(), Calendar.hour(), Calendar.minute(), Calendar.second(), Calendar.microsecond()}
Converts the Calendar.iso_days/0
format to the datetime format specified by this calendar.
@spec naive_datetime_to_iso_days( Calendar.year(), Calendar.month(), Calendar.day(), Calendar.hour(), Calendar.minute(), Calendar.second(), Calendar.microsecond() ) :: Calendar.iso_days()
Returns the Calendar.iso_days/0
format of the specified date.
Returns the number of periods 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_part
s
to a year-month-day
.
date_part
can be :months
only.
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.
@spec 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.
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".