Struct CivilDate 

pub struct CivilDate {
    pub year: i32,
    pub month: u8,
    pub day: u8,
}

Proleptic Gregorian calendar date.

A minimal date type used for epoch definitions and calendar arithmetic.

This type does not include time-of-day, timezone, or leap second information.

Validity

No validation is performed. Invalid dates are allowed and may produce undefined calendar results.

Examples

use gnss_time::{CivilDate, GALILEO_EPOCH, GPS_EPOCH};

let delta = GPS_EPOCH.seconds_until(GALILEO_EPOCH);
assert_eq!(delta, 619_315_200);

Fields

year: i32

Year (e.g. 1980)

month: u8

Month (1–12)

day: u8

Day of month (1–31)

Implementations

impl CivilDate

pub const fn new(year: i32, month: u8, day: u8) -> Self

Creates a new calendar date.

No validation is performed.

pub const fn days_from_unix(self) -> i64

Returns the number of days since the Unix epoch (1970-01-01).

Negative values indicate dates before the epoch.

Uses Howard Hinnant’s algorithm.

pub const fn days_until(self, other: CivilDate) -> i64

Returns the signed difference in days (other - self).

pub const fn seconds_until(self, other: CivilDate) -> i64

Returns the difference in whole seconds.

Time-of-day is not considered.

pub const fn nanos_until(self, other: CivilDate) -> i64

Returns the difference in nanoseconds.

Time-of-day is not considered.

Trait Implementations

impl Clone for CivilDate

fn clone(&self) -> CivilDate

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for CivilDate

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

Formats the value using the given formatter.

impl Display for CivilDate

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

Formats the value using the given formatter.

impl Hash for CivilDate

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for CivilDate

fn eq(&self, other: &CivilDate) -> 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 Copy for CivilDate

impl Eq for CivilDate

impl StructuralPartialEq for CivilDate