Enum TimestampFormat 

pub enum TimestampFormat {
    None,
    UnixSeconds,
    Uptime,
    Rfc3339,
}

How (or whether) to render a timestamp at the start of each stdout line.

Journald entries always carry their own native timestamp, so this applies only to the stdout layer.

Variants

None

No timestamp prefix. Default.

UnixSeconds

Seconds since UNIX_EPOCH, with millisecond fraction (e.g. 1714867200.123). Free of any external date crate.

Uptime

Seconds since this process started (e.g. 12.345). Useful for tests and short-lived programs.

Rfc3339

RFC 3339 / ISO 8601 in UTC with millisecond precision and a trailing Z (e.g. 2026-05-05T14:23:45.123Z). Hand-formatted from SystemTime; no external date crate. Default for SystemdLayer::json.

Trait Implementations

impl Clone for TimestampFormat

fn clone(&self) -> TimestampFormat

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for TimestampFormat

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

Formats the value using the given formatter.

impl Default for TimestampFormat

fn default() -> TimestampFormat

Returns the “default value” for a type.

impl PartialEq for TimestampFormat

fn eq(&self, other: &TimestampFormat) -> 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 Copy for TimestampFormat

impl Eq for TimestampFormat

impl StructuralPartialEq for TimestampFormat