Struct icu::calendar::Gregorian

pub struct Gregorian;

The Gregorian Calendar

The Gregorian calendar is a solar calendar used by most of the world, with twelve months.

This type can be used with Date or DateTime to represent dates in this calendar.

Era codes

This calendar supports two era codes: "bce", and "ce", corresponding to the BCE and CE eras

Trait Implementations

impl Calendar for Gregorian

fn year(&self, date: &<Gregorian as Calendar>::DateInner) -> FormattableYear

The calendar-specific year represented by date

fn month(&self, date: &<Gregorian as Calendar>::DateInner) -> FormattableMonth

The calendar-specific month represented by date

fn day_of_month(&self, date: &<Gregorian as Calendar>::DateInner) -> DayOfMonth

The calendar-specific day-of-month represented by date

fn day_of_year_info(
    &self,
    date: &<Gregorian as Calendar>::DateInner
) -> DayOfYearInfo

Information of the day of the year

type DateInner = GregorianDateInner

The internal type used to represent dates

fn date_from_codes(
    &self,
    era: Era,
    year: i32,
    month_code: MonthCode,
    day: u8
) -> Result<<Gregorian as Calendar>::DateInner, CalendarError>

Construct a date from era/month codes and fields

fn date_from_iso(&self, iso: Date<Iso>) -> GregorianDateInner

Construct the date from an ISO date

fn date_to_iso(&self, date: &<Gregorian as Calendar>::DateInner) -> Date<Iso>

Obtain an ISO date from this date

fn months_in_year(&self, date: &<Gregorian as Calendar>::DateInner) -> u8

Count the number of months in a given year, specified by providing a date from that year

fn days_in_year(&self, date: &<Gregorian as Calendar>::DateInner) -> u32

Count the number of days in a given year, specified by providing a date from that year

fn days_in_month(&self, date: &<Gregorian as Calendar>::DateInner) -> u8

Count the number of days in a given month, specified by providing a date from that year/month

fn offset_date(
    &self,
    date: &mut <Gregorian as Calendar>::DateInner,
    offset: DateDuration<Gregorian>
)

fn until(
    &self,
    date1: &<Gregorian as Calendar>::DateInner,
    date2: &<Gregorian as Calendar>::DateInner,
    _calendar2: &Gregorian,
    largest_unit: DateDurationUnit,
    smallest_unit: DateDurationUnit
) -> DateDuration<Gregorian>

fn debug_name(&self) -> &'static str

Obtain a name for the calendar for debug printing

fn any_calendar_kind(&self) -> Option<AnyCalendarKind>

The AnyCalendarKind corresponding to this calendar, if one exists. Implementors outside of icu_calendar should return None

fn day_of_week(&self, date: &Self::DateInner) -> IsoWeekday

Calculate the day of the week and return it

impl CldrCalendar for Gregorian

const DEFAULT_BCP_47_IDENTIFIER: Value

The Unicode BCP 47 identifier for the calendar If multiple BCP 47 identifiers work, this should be the default one when no others are provided

type DateSymbolsV1Marker = GregorianDateSymbolsV1Marker

The data marker for loading symbols for this calendar.

type DateLengthsV1Marker = GregorianDateLengthsV1Marker

The data marker for loading length-patterns for this calendar.

fn is_identifier_allowed_for_calendar(value: &Value) -> bool

Checks if a given BCP 47 identifier is allowed to be used with this calendar

impl Clone for Gregorian

fn clone(&self) -> Gregorian

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for Gregorian

fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

Formats the value using the given formatter.

impl Default for Gregorian

fn default() -> Gregorian

Returns the “default value” for a type.

impl IntoAnyCalendar for Gregorian

fn to_any(self) -> AnyCalendar

Convert this calendar into an AnyCalendar, moving it

fn to_any_cloned(&self) -> AnyCalendar

Convert this calendar into an AnyCalendar, cloning it

fn date_to_any(&self, d: &<Gregorian as Calendar>::DateInner) -> AnyDateInner

Convert a date for this calendar into an AnyDateInner

impl Copy for Gregorian