Struct DateTime 

pub struct DateTime { /* private fields */ }

Date-and-time type shared by multiple ASN.1 types (e.g. GeneralizedTime, UTCTime).

Following conventions from RFC 5280, this type is always Z-normalized (i.e. represents a UTC time). However, it isn’t named “UTC time” in order to prevent confusion with ASN.1 UTCTime.

Implementations

impl DateTime

pub const INFINITY: DateTime

This is the maximum date represented by the DateTime This corresponds to: 9999-12-31T23:59:59Z

pub fn new( year: u16, month: u8, day: u8, hour: u8, minutes: u8, seconds: u8, ) -> Result<Self>

Create a new DateTime from the given UTC time components.

pub fn from_unix_duration(unix_duration: Duration) -> Result<Self>

Compute a DateTime from the given Duration since the UNIX_EPOCH.

Returns None if the value is outside the supported date range.

pub fn year(&self) -> u16

Get the year.

pub fn month(&self) -> u8

Get the month.

pub fn day(&self) -> u8

Get the day.

pub fn hour(&self) -> u8

Get the hour.

pub fn minutes(&self) -> u8

Get the minutes.

pub fn seconds(&self) -> u8

Get the seconds.

pub fn unix_duration(&self) -> Duration

Compute Duration since UNIX_EPOCH from the given calendar date.

pub fn from_system_time(time: SystemTime) -> Result<Self>

Available on crate feature std only.

Instantiate from SystemTime.

pub fn to_system_time(&self) -> SystemTime

Available on crate feature std only.

Convert to SystemTime.

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 Debug for DateTime

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

Formats the value using the given formatter.

impl<'a> DecodeValue<'a> for DateTime

fn decode_value<R: Reader<'a>>(reader: &mut R, header: Header) -> Result<Self>

Attempt to decode this message using the provided Reader.

impl Display for DateTime

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

Formats the value using the given formatter.

impl EncodeValue for DateTime

fn value_len(&self) -> Result<Length>

Compute the length of this value (sans Tag+Length header) when encoded as ASN.1 DER.

fn encode_value(&self, writer: &mut impl Writer) -> Result<()>

Encode value (sans Tag+Length header) as ASN.1 DER using the provided Writer.

fn header(&self) -> Result<Header>

where Self: Tagged,

Get the Header used to encode this value.

impl FixedTag for DateTime

const TAG: Tag = Tag::GeneralizedTime

ASN.1 tag

impl From<&DateTime> for GeneralizedTime

fn from(datetime: &DateTime) -> Self

Converts to this type from the input type.

impl From<&DateTime> for SystemTime

Available on crate feature std only.

fn from(time: &DateTime) -> SystemTime

Converts to this type from the input type.

impl From<&GeneralizedTime> for DateTime

fn from(utc_time: &GeneralizedTime) -> DateTime

Converts to this type from the input type.

impl From<&UtcTime> for DateTime

fn from(utc_time: &UtcTime) -> DateTime

Converts to this type from the input type.

impl From<DateTime> for GeneralizedTime

fn from(datetime: DateTime) -> Self

Converts to this type from the input type.

impl From<DateTime> for SystemTime

Available on crate feature std only.

fn from(time: DateTime) -> SystemTime

Converts to this type from the input type.

impl From<GeneralizedTime> for DateTime

fn from(utc_time: GeneralizedTime) -> DateTime

Converts to this type from the input type.

impl From<UtcTime> for DateTime

fn from(utc_time: UtcTime) -> DateTime

Converts to this type from the input type.

impl FromStr for DateTime

type Err = Error

The associated error which can be returned from parsing.

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

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

impl Ord for DateTime

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

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 DateTime

fn partial_cmp(&self, other: &DateTime) -> 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 TryFrom<&DateTime> for UtcTime

type Error = Error

The type returned in the event of a conversion error.

fn try_from(datetime: &DateTime) -> Result<Self>

Performs the conversion.

impl TryFrom<&SystemTime> for DateTime

Available on crate feature std only.

type Error = Error

The type returned in the event of a conversion error.

fn try_from(time: &SystemTime) -> Result<DateTime>

Performs the conversion.

impl TryFrom<DateTime> for UtcTime

type Error = Error

The type returned in the event of a conversion error.

fn try_from(datetime: DateTime) -> Result<Self>

Performs the conversion.

impl TryFrom<SystemTime> for DateTime

Available on crate feature std only.

type Error = Error

The type returned in the event of a conversion error.

fn try_from(time: SystemTime) -> Result<DateTime>

Performs the conversion.

impl Copy for DateTime

impl Eq for DateTime

impl StructuralPartialEq for DateTime

Layout

Note: Most layout information is completely unstable and may even differ between compilations. The only exception is types with certain repr(...) attributes. Please see the Rust Reference's “Type Layout” chapter for details on type layout guarantees.

Size: 24 bytes