Enum Timezone 

pub enum Timezone {
    Fixed(UtcOffset),
    Named(String),
    Invalid(String),
}

The timezone policy a rule is expressed in (data-model.md §2).

Parsing never fails: text that is not a fixed offset is classified so that validation can name it. That is deliberate — a deserializer that returned a bare unknown timezone error would tell a user what serde thought, not which field was wrong or why.

UTC and Z are accepted as conveniences and canonicalize to +00:00.

Variants

Fixed(UtcOffset)

A fixed UTC offset, e.g. +01:00. Supported.

Named(String)

A named IANA zone, e.g. Europe/Berlin. Refused by validation: a daylight-saving transition makes a local date ambiguous, and resolving it needs a tzdb this crate does not depend on.

Invalid(String)

Text that looks like an offset attempt (+1:00) but is not ±HH:MM.

Implementations

impl Timezone

pub fn parse(raw: &str) -> Self

Classify a stored timezone string. Total; validation is what refuses.

pub const fn is_supported(&self) -> bool

Whether validation accepts this policy.

Trait Implementations

impl Clone for Timezone

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Timezone

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for Timezone

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

Deserialize this value from the given Serde deserializer.

impl Display for Timezone

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

Canonical ±HH:MM (or ±HH:MM:SS when seconds are present) for a fixed offset; the original text for anything else, so a diagnostic quotes what the user wrote.

impl Eq for Timezone

impl Hash for Timezone

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 Timezone

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

Equality operator ==.

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

Inequality operator !=.

impl Serialize for Timezone

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

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for Timezone