Struct Date 

pub struct Date {
    pub year: i32,
    pub month: u32,
    pub day: u32,
}

A proleptic-Gregorian calendar date (YYYY-MM-DD).

Ordering is chronological: the derived field order (year, month, day) is exactly calendar order.

Fields

year: i32

Calendar year.

month: u32

Month, 1 to 12.

day: u32

Day of month, 1 to 31 (validated against the month and leap year).

Implementations

impl Date

pub fn new(year: i32, month: u32, day: u32) -> Option<Self>

Builds a date, returning None for a day that does not exist in that month (2026-02-30, 2026-13-01, …).

pub fn parse(s: &str) -> Option<Self>

Parses a strict YYYY-MM-DD date. Returns None for any other shape, including datetimes; use DateTime::parse for those.

pub fn today_utc() -> Option<Self>

Today’s date in UTC, from the system clock.

Returns None only if the clock reports a time before the Unix epoch.

pub fn days_since_epoch(&self) -> i64

Days since 1970-01-01 (negative before it).

pub fn from_days_since_epoch(days: i64) -> Self

The date days after 1970-01-01.

pub const fn to_utc_datetime(&self) -> DateTime

Returns a UTC datetime at midnight (00:00:00Z) on this date.

Trait Implementations

impl Clone for Date

fn clone(&self) -> Date

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for Date

impl Debug for Date

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

Formats the value using the given formatter.

impl Display for Date

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

Formats the value using the given formatter.

impl Eq for Date

impl FromStr for Date

type Err = ParseDateError

The associated error which can be returned from parsing.

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

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

impl Hash for Date

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 Ord for Date

fn cmp(&self, other: &Date) -> 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 Date

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

Equality operator ==.

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

Inequality operator !=.

impl PartialOrd for Date

fn partial_cmp(&self, other: &Date) -> 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 StructuralPartialEq for Date