Struct Utc 

pub struct Utc { /* private fields */ }

Coordinated Universal Time.

Implementations

impl Utc

pub fn offset_tai(&self, provider: &impl LeapSecondsProvider) -> TimeDelta

Returns the TAI−UTC offset at this UTC instant.

pub fn to_time_with_provider( &self, provider: &impl LeapSecondsProvider, ) -> Time<Tai>

Converts this UTC instant to TAI using the given leap-seconds provider.

pub fn to_time(&self) -> Time<Tai>

Converts this UTC instant to TAI using the built-in leap-seconds table.

pub fn to_dyn_time_with_provider( &self, provider: &impl LeapSecondsProvider, ) -> DynTime

Converts this UTC instant to a DynTime in TAI using the given provider.

pub fn to_dyn_time(&self) -> DynTime

Converts this UTC instant to a DynTime in TAI using the built-in table.

impl Utc

pub fn new( date: Date, time: TimeOfDay, provider: &impl LeapSecondsProvider, ) -> Result<Self, UtcError>

Creates a new Utc instance from the given Date and TimeOfDay, with leap second validation provided by the LeapSecondsProvider.

Errors

• UtcError::NonLeapSecondDate if time.seconds is 60 seconds and the date is not a leap second date.

pub fn builder() -> UtcBuilder

Returns a new UtcBuilder.

pub fn from_iso_with_provider<T: LeapSecondsProvider>( iso: &str, provider: &T, ) -> Result<Self, UtcError>

Constructs a new Utc instance from the given ISO 8601 string, with leap second validation provided by the LeapSecondsProvider.

Errors

• UtcError::InvalidIsoString if the input string is not a valid ISO 8601 string.
• UtcError::DateError if the date component of the string is invalid.
• UtcError::TimeError if the time component of the string is invalid.
• UtcError::NonLeapSecondDate if the time component is 60 seconds and the date is not a leap second date.

pub fn from_iso(iso: &str) -> Result<Self, UtcError>

Constructs a new Utc instance from the given ISO 8601 string, with leap second validation provided by [BuiltinLeapSeconds].

pub fn from_delta(delta: TimeDelta) -> Result<Self, UtcError>

Constructs a new Utc instance from a TimeDelta relative to J2000.

Note that this constructor is not leap-second aware.

Trait Implementations

impl ApproxEq for Utc

fn approx_eq(&self, rhs: &Self, atol: f64, rtol: f64) -> ApproxEqResults

Compares self with rhs for approximate equality.

impl CalendarDate for Utc

fn date(&self) -> Date

Returns the date component.

fn year(&self) -> i64

Returns the year.

fn month(&self) -> u8

Returns the month (1–12).

fn day(&self) -> u8

Returns the day of the month (1–31).

fn day_of_year(&self) -> u16

Returns the day number within the year (1–366).

impl CivilTime for Utc

fn time(&self) -> TimeOfDay

Returns the time-of-day component.

fn hour(&self) -> u8

Returns the hour (0–23).

fn minute(&self) -> u8

Returns the minute (0–59).

fn second(&self) -> u8

Returns the second (0–60, where 60 represents a leap second).

fn as_seconds_f64(&self) -> f64

Returns the second including the subsecond fraction as an f64.

fn millisecond(&self) -> u32

Returns the millisecond component (0–999).

fn microsecond(&self) -> u32

Returns the microsecond component (0–999).

fn nanosecond(&self) -> u32

Returns the nanosecond component (0–999).

fn picosecond(&self) -> u32

Returns the picosecond component (0–999).

fn femtosecond(&self) -> u32

Returns the femtosecond component (0–999).

impl Clone for Utc

fn clone(&self) -> Utc

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Utc

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

Formats the value using the given formatter.

impl Default for Utc

fn default() -> Utc

Returns the “default value” for a type.

impl Display for Utc

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

Formats the value using the given formatter.

impl FromStr for Utc

type Err = UtcError

The associated error which can be returned from parsing.

fn from_str(iso: &str) -> Result<Self, Self::Err>

Parses a string s to return a value of this type.

impl JulianDate for Utc

fn julian_date(&self, epoch: Epoch, unit: Unit) -> f64

Expresses self as a Julian date in the specified Unit, relative to the given Epoch.

fn two_part_julian_date(&self) -> (f64, f64)

Expresses self as a two-part Julian date in the specified Unit, relative to the given Epoch.

fn seconds_since_julian_epoch(&self) -> f64

Returns the number of seconds since the Julian epoch as an f64.

fn seconds_since_modified_julian_epoch(&self) -> f64

Returns the number of seconds since the Modified Julian epoch as an f64.

fn seconds_since_j1950(&self) -> f64

Returns the number of seconds since J1950 as an f64.

fn seconds_since_j2000(&self) -> f64

Returns the number of seconds since J2000 as an f64.

fn days_since_julian_epoch(&self) -> f64

Returns the number of days since the Julian epoch as an f64.

fn days_since_modified_julian_epoch(&self) -> f64

Returns the number of days since the Modified Julian epoch as an f64.

fn days_since_j1950(&self) -> f64

Returns the number of days since J1950 as an f64.

fn days_since_j2000(&self) -> f64

Returns the number of days since J2000 as an f64.

fn years_since_julian_epoch(&self) -> f64

Returns the number of years since the Julian epoch as an f64.

fn years_since_modified_julian_epoch(&self) -> f64

Returns the number of years since the Modified Julian epoch as an f64.

fn years_since_j1950(&self) -> f64

Returns the number of years since J1950 as an f64.

fn years_since_j2000(&self) -> f64

Returns the number of years since J2000 as an f64.

fn centuries_since_julian_epoch(&self) -> f64

Returns the number of centuries since the Julian epoch as an f64.

fn centuries_since_modified_julian_epoch(&self) -> f64

Returns the number of centuries since the Modified Julian epoch as an f64.

fn centuries_since_j1950(&self) -> f64

Returns the number of centuries since J1950 as an f64.

fn centuries_since_j2000(&self) -> f64

Returns the number of centuries since J2000 as an f64.

impl Ord for Utc

fn cmp(&self, other: &Utc) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

impl PartialEq for Utc

fn eq(&self, other: &Utc) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl PartialOrd for Utc

fn partial_cmp(&self, other: &Utc) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

fn lt(&self, other: &Rhs) -> bool

Tests less than (for self and other) and is used by the < operator.

fn le(&self, other: &Rhs) -> bool

Tests less than or equal to (for self and other) and is used by the <= operator.

fn gt(&self, other: &Rhs) -> bool

Tests greater than (for self and other) and is used by the > operator.

fn ge(&self, other: &Rhs) -> bool

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl ToDelta for Utc

fn to_delta(&self) -> TimeDelta

Transforms the value into a TimeDelta.

impl ToUtc for Utc

fn to_utc_with_provider(&self, _provider: &impl LeapSecondsProvider) -> Utc

Converts to UTC using the given leap-seconds provider.

fn to_utc(&self) -> Utc

Converts to UTC using the built-in leap-seconds table.

impl Copy for Utc

impl Eq for Utc

impl StructuralPartialEq for Utc