Enum ZmanPrimitive 

pub enum ZmanPrimitive {
    ElevationAdjustedSunrise,
    SeaLevelSunrise,
    ConfiguredSunrise,
    ConfiguredSunset,
    SolarTransit,
    SolarMidnight,
    ChatzosHayomAsHalfDay,
    ChatzosHayom,
    ChatzosHalaylaAsHalfDay,
    ChatzosHalayla,
    ElevationAdjustedSunset,
    SeaLevelSunset,
    SunriseOffsetByDegrees(f64),
    SunsetOffsetByDegrees(f64),
    LocalMeanTime(f64),
    CandleLighting,
    Offset(&'static ZmanPrimitive, SignedDuration),
    ZmanisOffset(&'static ZmanPrimitive, f64),
    HalfDayBasedOffset(&'static ZmanPrimitive, &'static ZmanPrimitive, f64),
    Shema(&'static ZmanPrimitive, &'static ZmanPrimitive, bool),
    MinchaGedola(&'static ZmanPrimitive, &'static ZmanPrimitive, bool),
    SamuchLeMinchaKetana(&'static ZmanPrimitive, &'static ZmanPrimitive, bool),
    MinchaKetana(&'static ZmanPrimitive, &'static ZmanPrimitive, bool),
    Tefila(&'static ZmanPrimitive, &'static ZmanPrimitive, bool),
    PlagHamincha(&'static ZmanPrimitive, &'static ZmanPrimitive, bool),
    SofZmanBiurChametz(&'static ZmanPrimitive, &'static ZmanPrimitive, bool),
    SofZmanAchilasChametz(&'static ZmanPrimitive, &'static ZmanPrimitive, bool),
    TzaisAteretTorah,
    SofZmanKidushLevana15Days,
    SofZmanKidushLevanaBetweenMoldos,
    TchilasZmanKidushLevana3Days,
    TchilasZmanKidushLevana7Days,
    BainHashmashosRt2Stars,
    MinchaGedolaAhavatShalom,
    MinchaGedolaGraGreaterThan30,
    MinchaKetanaAhavatShalom,
    PlagAhavatShalom,
    BeginCivilTwilight,
    EndCivilTwilight,
    BeginNauticalTwilight,
    EndNauticalTwilight,
    BeginAstronomicalTwilight,
    EndAstronomicalTwilight,
    SunsetOrWesternmostSolarAzimuth,
    SunriseOrEasternmostSolarAzimuth,
}

A low-level building block for calculating zmanim.

These should typically not be used directly. Instead, use the presets in crate::zmanim::presets.

Variants

ElevationAdjustedSunrise

Sunrise at the configured location/date.

SeaLevelSunrise

Sunrise at sea level (no elevation adjustment).

ConfiguredSunrise

Sunrise using the configured elevation mode (sea-level or elevation-adjusted).

ConfiguredSunset

Sunset using the configured elevation mode (sea-level or elevation-adjusted).

SolarTransit

Solar transit (local apparent noon / astronomical chatzos).

SolarMidnight

Solar anti-transit (local apparent midnight / astronomical chatzos halayla).

ChatzosHayomAsHalfDay

The midpoint between sunrise and sunset.

ChatzosHayom

Solar Transit or the midpoint between sunrise and sunset depending on the configuration.

ChatzosHalaylaAsHalfDay

The midpoint between sunset and the tomorrows sunrise.

ChatzosHalayla

Solar Midnight or the midpoint between sunset and the tomorrows sunrise depending on the configuration.

ElevationAdjustedSunset

Sunset at the configured location/date.

SeaLevelSunset

Sunset at sea level (no elevation adjustment).

SunriseOffsetByDegrees(f64)

Time before sunrise when the sun is degrees below the geometric horizon (no elevation adjustment).

SunsetOffsetByDegrees(f64)

Time after sunset when the sun is degrees below the geometric horizon (no elevation adjustment).

LocalMeanTime(f64)

Local mean time at the given hour (0.0–24.0).

CandleLighting

Shabbos/Yom Tov candle lighting time based on configuration.

Offset(&'static ZmanPrimitive, SignedDuration)

A fixed time offset from another ZmanPrimitive.

ZmanisOffset(&'static ZmanPrimitive, f64)

An offset in “shaos zmaniyos” according to the GRA from another ZmanPrimitive.

HalfDayBasedOffset(&'static ZmanPrimitive, &'static ZmanPrimitive, f64)

An offset expressed as a fraction of the half-day between two ZmanPrimitives.

Shema(&'static ZmanPrimitive, &'static ZmanPrimitive, bool)

Sof zman shma derived from two bounding ZmanPrimitives.

MinchaGedola(&'static ZmanPrimitive, &'static ZmanPrimitive, bool)

Mincha gedola derived from two bounding ZmanPrimitives.

SamuchLeMinchaKetana(&'static ZmanPrimitive, &'static ZmanPrimitive, bool)

Samuch le-mincha ketana derived from two bounding ZmanPrimitives.

MinchaKetana(&'static ZmanPrimitive, &'static ZmanPrimitive, bool)

Mincha ketana derived from two bounding ZmanPrimitives.

Tefila(&'static ZmanPrimitive, &'static ZmanPrimitive, bool)

Sof zman tefila derived from two bounding ZmanPrimitives.

PlagHamincha(&'static ZmanPrimitive, &'static ZmanPrimitive, bool)

Plag hamincha derived from two bounding ZmanPrimitives.

SofZmanBiurChametz(&'static ZmanPrimitive, &'static ZmanPrimitive, bool)

Sof zman biur chametz derived from two bounding ZmanPrimitives.

SofZmanAchilasChametz(&'static ZmanPrimitive, &'static ZmanPrimitive, bool)

Sof zman achilas chametz derived from two bounding ZmanPrimitives.

TzaisAteretTorah

Tzais according to the shita of Yeshivas Ateret Torah

SofZmanKidushLevana15Days

The latest time of Kiddush Levana calculated as 15 days after the molad.

SofZmanKidushLevanaBetweenMoldos

The latest time of Kiddush Levana according to the the opinion of the Maharil that it is calculated as halfway between molad and molad.

TchilasZmanKidushLevana3Days

The earliest time of Kiddush Levana according to Rabbeinu Yonahs opinion that it can be said 3 days after the molad.

TchilasZmanKidushLevana7Days

The earliest time of Kiddush Levana according to the opinions that it should not be said until 7 days after the molad.

BainHashmashosRt2Stars

Bain hashmashos (Rabbeinu Tam, 2-stars): sunset + (sunrise - alos19.8°) * 5/18.

MinchaGedolaAhavatShalom

Mincha gedola (Ahavat Shalom): later of chatzos + 30m and chatzos + 1/2 shaah.

MinchaGedolaGraGreaterThan30

Mincha gedola GRA, but no earlier than 30 minutes after chatzos.

MinchaKetanaAhavatShalom

Mincha ketana (Ahavat Shalom): 2.5 shaos zmaniyos before tzais 3.8° (day = alos16.1° → tzais3.8°).

PlagAhavatShalom

Plag hamincha (Ahavat Shalom): 1.25 shaos zmaniyos before tzais 3.8° (day = alos16.1° → tzais3.8°).

BeginCivilTwilight

The beginning of civil twilight (dawn), when the sun is 6° below the geometric horizon (96° zenith).

EndCivilTwilight

The end of civil twilight, when the sun is 6° below the geometric horizon (96° zenith).

BeginNauticalTwilight

The beginning of nautical twilight, when the sun is 12° below the geometric horizon (102° zenith).

EndNauticalTwilight

The end of nautical twilight, when the sun is 12° below the geometric horizon (102° zenith).

BeginAstronomicalTwilight

The beginning of astronomical twilight, when the sun is 18° below the geometric horizon (108° zenith).

EndAstronomicalTwilight

The end of astronomical twilight, when the sun is 18° below the geometric horizon (108° zenith).

SunsetOrWesternmostSolarAzimuth

Configured sunset, or the westernmost solar azimuth when sunset does not occur.

SunriseOrEasternmostSolarAzimuth

Configured sunrise, or the easternmost solar azimuth when sunrise does not occur.

Trait Implementations

impl Clone for ZmanPrimitive

fn clone(&self) -> ZmanPrimitive

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ZmanPrimitive

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

Formats the value using the given formatter.

impl Format for ZmanPrimitive

Available on crate feature defmt only.

fn format(&self, fmt: Formatter<'_>)

Writes the defmt representation of self to fmt.

impl ZmanLike for ZmanPrimitive

fn calculate( &self, calculator: &ZmanimCalculator, ) -> Result<Timestamp, ZmanimError>

Calculates this zman with the given calculator.