Struct product_os_async_executor::prelude::FixedOffset

pub struct FixedOffset { /* private fields */ }

The time zone with fixed offset, from UTC-23:59:59 to UTC+23:59:59.

Using the TimeZone methods on a FixedOffset struct is the preferred way to construct DateTime<FixedOffset> instances. See the east_opt and west_opt methods for examples.

Implementations

impl FixedOffset

pub fn east(secs: i32) -> FixedOffset

👎Deprecated since 0.4.23: use east_opt() instead

Makes a new FixedOffset for the Eastern Hemisphere with given timezone difference. The negative secs means the Western Hemisphere.

Panics on the out-of-bound secs.

pub const fn east_opt(secs: i32) -> Option<FixedOffset>

Makes a new FixedOffset for the Eastern Hemisphere with given timezone difference. The negative secs means the Western Hemisphere.

Returns None on the out-of-bound secs.

Example

use chrono::{FixedOffset, TimeZone};
let hour = 3600;
let datetime =
    FixedOffset::east_opt(5 * hour).unwrap().with_ymd_and_hms(2016, 11, 08, 0, 0, 0).unwrap();
assert_eq!(&datetime.to_rfc3339(), "2016-11-08T00:00:00+05:00")

pub fn west(secs: i32) -> FixedOffset

👎Deprecated since 0.4.23: use west_opt() instead

Makes a new FixedOffset for the Western Hemisphere with given timezone difference. The negative secs means the Eastern Hemisphere.

Panics on the out-of-bound secs.

pub const fn west_opt(secs: i32) -> Option<FixedOffset>

Makes a new FixedOffset for the Western Hemisphere with given timezone difference. The negative secs means the Eastern Hemisphere.

Returns None on the out-of-bound secs.

Example

use chrono::{FixedOffset, TimeZone};
let hour = 3600;
let datetime =
    FixedOffset::west_opt(5 * hour).unwrap().with_ymd_and_hms(2016, 11, 08, 0, 0, 0).unwrap();
assert_eq!(&datetime.to_rfc3339(), "2016-11-08T00:00:00-05:00")

pub const fn local_minus_utc(&self) -> i32

Returns the number of seconds to add to convert from UTC to the local time.

pub const fn utc_minus_local(&self) -> i32

Returns the number of seconds to add to convert from the local time to UTC.

Trait Implementations

impl<Tz> Add<FixedOffset> for DateTime<Tz>

where Tz: TimeZone,

Add FixedOffset to the datetime value of DateTime (offset remains unchanged).

Panics

Panics if the resulting date would be out of range.

type Output = DateTime<Tz>

The resulting type after applying the + operator.

fn add(self, rhs: FixedOffset) -> DateTime<Tz>

Performs the + operation.

impl Add<FixedOffset> for NaiveDateTime

Add FixedOffset to NaiveDateTime.

Panics

Panics if the resulting date would be out of range. Consider using checked_add_offset to get an Option instead.

type Output = NaiveDateTime

The resulting type after applying the + operator.

fn add(self, rhs: FixedOffset) -> NaiveDateTime

Performs the + operation.

impl Add<FixedOffset> for NaiveTime

Add FixedOffset to NaiveTime.

This wraps around and never overflows or underflows. In particular the addition ignores integral number of days.

type Output = NaiveTime

The resulting type after applying the + operator.

fn add(self, rhs: FixedOffset) -> NaiveTime

Performs the + operation.

impl Clone for FixedOffset

fn clone(&self) -> FixedOffset

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for FixedOffset

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

Formats the value using the given formatter.

impl Display for FixedOffset

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

Formats the value using the given formatter.

impl FromStr for FixedOffset

Parsing a str into a FixedOffset uses the format %z.

type Err = ParseError

The associated error which can be returned from parsing.

fn from_str(s: &str) -> Result<FixedOffset, <FixedOffset as FromStr>::Err>

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

impl Hash for FixedOffset

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 Offset for FixedOffset

fn fix(&self) -> FixedOffset

Returns the fixed offset from UTC to the local time stored.

impl PartialEq for FixedOffset

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

This method tests for self and other values to be equal, and is used by ==.

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

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl<Tz> Sub<FixedOffset> for DateTime<Tz>

where Tz: TimeZone,

Subtract FixedOffset from the datetime value of DateTime (offset remains unchanged).

Panics

Panics if the resulting date would be out of range.

type Output = DateTime<Tz>

The resulting type after applying the - operator.

fn sub(self, rhs: FixedOffset) -> DateTime<Tz>

Performs the - operation.

impl Sub<FixedOffset> for NaiveDateTime

Subtract FixedOffset from NaiveDateTime.

Panics

Panics if the resulting date would be out of range. Consider using checked_sub_offset to get an Option instead.

type Output = NaiveDateTime

The resulting type after applying the - operator.

fn sub(self, rhs: FixedOffset) -> NaiveDateTime

Performs the - operation.

impl Sub<FixedOffset> for NaiveTime

Subtract FixedOffset from NaiveTime.

This wraps around and never overflows or underflows. In particular the subtraction ignores integral number of days.

type Output = NaiveTime

The resulting type after applying the - operator.

fn sub(self, rhs: FixedOffset) -> NaiveTime

Performs the - operation.

impl TimeZone for FixedOffset

type Offset = FixedOffset

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: &FixedOffset) -> FixedOffset

Reconstructs the time zone from the offset.

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

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

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

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

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

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

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

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).

impl Copy for FixedOffset

impl Eq for FixedOffset

impl StructuralPartialEq for FixedOffset