Struct DateTime 

pub struct DateTime {
    pub date: Date,
    pub hour: u32,
    pub minute: u32,
    pub second: u32,
    pub nanosecond: u32,
    pub offset_minutes: Option<i32>,
    pub has_time: bool,
}

An ISO-8601 datetime: a Date, an optional time of day, and an optional UTC offset.

A value with no offset is treated as UTC for comparison, which is what consumers need in order to answer “which verification is most recent” across producers that write Z, +02:00, or nothing at all.

Fields

date: Date

The calendar date.

hour: u32

Hour, 0 to 23 (0 when the value is date-only).

minute: u32

Minute, 0 to 59.

second: u32

Second, 0 to 60 (60 admits a leap second).

nanosecond: u32

Fractional second in nanoseconds.

offset_minutes: Option<i32>

Minutes east of UTC, or None when the value carries no zone.

has_time: bool

false when only a date was written (2026-09-23).

Implementations

impl DateTime

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

Parses an ISO-8601 datetime.

Accepts YYYY-MM-DD, YYYY-MM-DDTHH:MM[:SS[.fraction]] (with T, t, or a space as the separator), and an optional Z / ±HH:MM / ±HHMM / ±HH zone.

pub fn to_utc_seconds(&self) -> i64

Seconds since the Unix epoch, normalizing the zone (a missing offset is read as UTC).

pub fn utc_date(&self) -> Date

The calendar date in UTC, which differs from DateTime::date when the value carries an offset that crosses midnight.

pub const fn has_offset(&self) -> bool

true if the parsed datetime carries an explicit UTC offset.

pub fn now_utc() -> Option<Self>

The current instant in UTC from the system clock.

pub const fn from_date_utc(date: Date) -> Self

Creates a UTC datetime at midnight (00:00:00Z) for a given Date.

Trait Implementations

impl Clone for DateTime

fn clone(&self) -> DateTime

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for DateTime

impl Debug for DateTime

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

Formats the value using the given formatter.

impl Display for DateTime

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

Formats the value using the given formatter.

impl Eq for DateTime

impl FromStr for DateTime

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 DateTime

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 DateTime

fn cmp(&self, other: &Self) -> 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 DateTime

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

Equality operator ==.

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

Inequality operator !=.

impl PartialOrd for DateTime

fn partial_cmp(&self, other: &Self) -> 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 DateTime