Struct Timestamp 

pub struct Timestamp(/* private fields */);

A point in time (UTC), the canonical instant type.

Serializes as a millisecond-precision RFC 3339 string with a Z UTC designator (e.g. 2023-11-14T22:13:20.000Z).

Implementations

impl Timestamp

pub fn now() -> Timestamp

The current instant from the system clock.

Prefer a Clock in code that should be testable; this is for the edges (e.g. constructing the SystemClock itself).

pub fn from_offset_datetime(dt: OffsetDateTime) -> Timestamp

Wrap a time::OffsetDateTime, normalising it to UTC.

pub const fn as_offset_datetime(&self) -> &OffsetDateTime

The underlying time::OffsetDateTime (always UTC).

pub const fn into_offset_datetime(self) -> OffsetDateTime

Consume into the underlying time::OffsetDateTime (always UTC).

pub fn from_unix_millis_opt(millis: i64) -> Option<Timestamp>

Construct from milliseconds since the Unix epoch, or None if millis falls outside the representable range (roughly years ±9999).

Prefer this over from_unix_millis when millis is untrusted or computed and an out-of-range value should be treated as an error rather than silently clamped.

pub fn from_unix_millis(millis: i64) -> Timestamp

Construct from milliseconds since the Unix epoch.

Saturating: a millis value outside the representable range is clamped to the earliest or latest representable instant, preserving order — a far-future overflow stays in the far future and a far-past underflow stays in the far past; neither collapses to “now”. Use from_unix_millis_opt to detect out-of-range input instead of saturating.

pub fn from_unix_seconds_opt(secs: i64) -> Option<Timestamp>

Construct from seconds since the Unix epoch, or None if secs falls outside the representable range.

pub fn from_unix_seconds(secs: i64) -> Timestamp

Construct from seconds since the Unix epoch, saturating on out-of-range input (see from_unix_millis).

pub fn unix_millis(&self) -> i64

Milliseconds since the Unix epoch.

pub fn unix_seconds(&self) -> i64

Whole seconds since the Unix epoch.

pub fn to_rfc3339(&self) -> String

RFC 3339 / ISO 8601 representation (millisecond precision, Z suffix).

pub fn parse_rfc3339(s: &str) -> Option<Timestamp>

Parse an RFC 3339 / ISO 8601 timestamp (e.g. from to_rfc3339), or None if it is malformed. The inverse of to_rfc3339.

pub fn duration_since(&self, earlier: Timestamp) -> Duration

The signed duration elapsed since earlier (negative if earlier is later).

pub fn checked_add(&self, delta: Duration) -> Option<Timestamp>

This instant shifted by delta, or None on over/underflow.

Trait Implementations

impl Clone for Timestamp

fn clone(&self) -> Timestamp

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for Timestamp

impl Debug for Timestamp

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for Timestamp

fn deserialize<D>( deserializer: D, ) -> Result<Timestamp, <D as Deserializer<'de>>::Error>

where D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Display for Timestamp

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

Formats the value using the given formatter.

impl Eq for Timestamp

impl From<OffsetDateTime> for Timestamp

fn from(dt: OffsetDateTime) -> Timestamp

Converts to this type from the input type.

impl Hash for Timestamp

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

where __H: Hasher,

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 Timestamp

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

fn eq(&self, other: &Timestamp) -> 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 Timestamp

fn partial_cmp(&self, other: &Timestamp) -> 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 Serialize for Timestamp

fn serialize<S>( &self, serializer: S, ) -> Result<<S as Serializer>::Ok, <S as Serializer>::Error>

where S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for Timestamp