Struct TimezoneId 

pub struct TimezoneId { /* private fields */ }

A validated time zone, independent of the optional time zone database.

UTC and fixed offsets (+05:45, -03:30, or +00:19:32) work in every build. IANA names such as America/New_York need the timezones feature, enabled by default. Unavailable names are rejected rather than approximated.

Implementations

impl TimezoneId

pub fn utc() -> Self

Coordinated Universal Time.

pub fn named(name: &str) -> Option<Self>

The zone of an IANA name or fixed offset, if available in this build.

pub fn fixed_offset(seconds: i32) -> Option<Self>

A constant offset east of UTC, in seconds, strictly between -24 and +24 hours. Negative values are west of UTC; fixed offsets have no daylight-saving changes.

pub fn name(&self) -> &str

The IANA name, UTC, or signed fixed offset.

Trait Implementations

impl Clone for TimezoneId

fn clone(&self) -> TimezoneId

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for TimezoneId

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

Formats the value using the given formatter.

impl Default for TimezoneId

fn default() -> Self

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for TimezoneId

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

Deserialize this value from the given Serde deserializer.

impl Display for TimezoneId

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

Formats the value using the given formatter.

impl Eq for TimezoneId

impl FromStr for TimezoneId

type Err = ParseError

The associated error which can be returned from parsing.

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

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

impl Hash for TimezoneId

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 TimezoneId

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

Equality operator ==.

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

Inequality operator !=.

impl Serialize for TimezoneId

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

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for TimezoneId

impl TimeZone for TimezoneId

type Offset = TimezoneOffset

An associated offset type. This type is used to store the actual offset in date and time types. The original TimeZone value can be recovered via TimeZone::from_offset.

fn from_offset(offset: &Self::Offset) -> Self

Reconstructs the time zone from the offset.

fn offset_from_local_date( &self, _local: &NaiveDate, ) -> LocalResult<Self::Offset>

Creates the offset(s) for given local NaiveDate if possible.

fn offset_from_local_datetime( &self, _local: &NaiveDateTime, ) -> LocalResult<Self::Offset>

Creates the offset(s) for given local NaiveDateTime if possible.

fn offset_from_utc_date(&self, _utc: &NaiveDate) -> Self::Offset

Creates the offset for given UTC NaiveDate. This cannot fail.

fn offset_from_utc_datetime(&self, _utc: &NaiveDateTime) -> Self::Offset

Creates the offset for given UTC NaiveDateTime. This cannot fail.

fn with_ymd_and_hms( &self, year: i32, month: u32, day: u32, hour: u32, min: u32, sec: u32, ) -> LocalResult<DateTime<Self>>

Make a new DateTime from year, month, day, time components and current time zone.

fn ymd(&self, year: i32, month: u32, day: u32) -> Date<Self>

👎Deprecated since 0.4.23:

use with_ymd_and_hms() instead

Makes a new Date from year, month, day and the current time zone. This assumes the proleptic Gregorian calendar, with the year 0 being 1 BCE.

fn ymd_opt(&self, year: i32, month: u32, day: u32) -> LocalResult<Date<Self>>

👎Deprecated since 0.4.23:

use with_ymd_and_hms() instead

Makes a new Date from year, month, day and the current time zone. This assumes the proleptic Gregorian calendar, with the year 0 being 1 BCE.

fn yo(&self, year: i32, ordinal: u32) -> Date<Self>

👎Deprecated since 0.4.23:

use from_local_datetime() with a NaiveDateTime instead

Makes a new Date from year, day of year (DOY or “ordinal”) and the current time zone. This assumes the proleptic Gregorian calendar, with the year 0 being 1 BCE.

fn yo_opt(&self, year: i32, ordinal: u32) -> LocalResult<Date<Self>>

👎Deprecated since 0.4.23:

use from_local_datetime() with a NaiveDateTime instead

Makes a new Date from year, day of year (DOY or “ordinal”) and the current time zone. This assumes the proleptic Gregorian calendar, with the year 0 being 1 BCE.

fn isoywd(&self, year: i32, week: u32, weekday: Weekday) -> Date<Self>

👎Deprecated since 0.4.23:

use from_local_datetime() with a NaiveDateTime instead

Makes a new Date from ISO week date (year and week number), day of the week (DOW) and the current time zone. This assumes the proleptic Gregorian calendar, with the year 0 being 1 BCE. The resulting Date may have a different year from the input year.

fn isoywd_opt( &self, year: i32, week: u32, weekday: Weekday, ) -> LocalResult<Date<Self>>

👎Deprecated since 0.4.23:

use from_local_datetime() with a NaiveDateTime instead

Makes a new Date from ISO week date (year and week number), day of the week (DOW) and the current time zone. This assumes the proleptic Gregorian calendar, with the year 0 being 1 BCE. The resulting Date may have a different year from the input year.

fn timestamp(&self, secs: i64, nsecs: u32) -> DateTime<Self>

👎Deprecated since 0.4.23:

use timestamp_opt() instead

Makes a new DateTime from the number of non-leap seconds since January 1, 1970 0:00:00 UTC (aka “UNIX timestamp”) and the number of nanoseconds since the last whole non-leap second.

fn timestamp_opt(&self, secs: i64, nsecs: u32) -> LocalResult<DateTime<Self>>

Makes a new DateTime from the number of non-leap seconds since January 1, 1970 0:00:00 UTC (aka “UNIX timestamp”) and the number of nanoseconds since the last whole non-leap second.

fn timestamp_millis(&self, millis: i64) -> DateTime<Self>

👎Deprecated since 0.4.23:

use timestamp_millis_opt() instead

Makes a new DateTime from the number of non-leap milliseconds since January 1, 1970 0:00:00 UTC (aka “UNIX timestamp”).

fn timestamp_millis_opt(&self, millis: i64) -> LocalResult<DateTime<Self>>

Makes a new DateTime from the number of non-leap milliseconds since January 1, 1970 0:00:00 UTC (aka “UNIX timestamp”).

fn timestamp_nanos(&self, nanos: i64) -> DateTime<Self>

Makes a new DateTime from the number of non-leap nanoseconds since January 1, 1970 0:00:00 UTC (aka “UNIX timestamp”).

fn timestamp_micros(&self, micros: i64) -> LocalResult<DateTime<Self>>

Makes a new DateTime from the number of non-leap microseconds since January 1, 1970 0:00:00 UTC (aka “UNIX timestamp”).

fn datetime_from_str( &self, s: &str, fmt: &str, ) -> Result<DateTime<Self>, ParseError>

👎Deprecated since 0.4.29:

use DateTime::parse_from_str or NaiveDateTime::parse_from_str with and_utc() or and_local_timezone() instead

Parses a string with the specified format string and returns a DateTime with the current offset.

fn from_local_date(&self, local: &NaiveDate) -> LocalResult<Date<Self>>

👎Deprecated since 0.4.23:

use from_local_datetime() instead

Converts the local NaiveDate to the timezone-aware Date if possible.

fn from_local_datetime( &self, local: &NaiveDateTime, ) -> LocalResult<DateTime<Self>>

Converts the local NaiveDateTime to the timezone-aware DateTime if possible.

fn from_utc_date(&self, utc: &NaiveDate) -> Date<Self>

👎Deprecated since 0.4.23:

use from_utc_datetime() instead

Converts the UTC NaiveDate to the local time. The UTC is continuous and thus this cannot fail (but can give the duplicate local time).

fn from_utc_datetime(&self, utc: &NaiveDateTime) -> DateTime<Self>

Converts the UTC NaiveDateTime to the local time. The UTC is continuous and thus this cannot fail (but can give the duplicate local time).