Crate gnss_time 

gnss-time

A type-safe GNSS time scale library with zero runtime overhead.

Supports conversions between:

• GPS
• UTC
• GLONASS
• Galileo
• BeiDou
• TAI

Leap seconds are handled explicitly via a provider trait, ensuring deterministic behavior and full no_std compatibility.

Design goals

• Zero allocations
• No global mutable state
• Fully deterministic conversions
• Embedded-friendly (no_std)
• Strong type safety across time scales

Quick start

use gnss_time::prelude::*;

let gps = Time::<Gps>::from_week_tow(
    2345,
    DurationParts {
        seconds: 432_000,
        nanos: 0,
    },
)
.unwrap();

assert_eq!(gps.to_string(), "GPS 2345:432000.000");

let utc: Time<Utc> = gps.into_scale_with(LeapSeconds::builtin()).unwrap();

Re-exports

pub use convert::*;

pub use duration::*;

pub use epoch::*;

pub use error::*;

pub use leap::*;

pub use matrix::*;

pub use scale::*;

pub use time::*;

Modules

convert

GNSS time scale conversion

duration

Duration

epoch

Epochs and calendar arithmetic

error

Error types for the gnss-time crate.

leap

Leap seconds — conversion context

matrix

Conversion matrix: the full graph of supported transformations

prelude

Common imports for typical usage.

scale

GNSS Time Scale Marker Types

time

Time<S> — the core timestamp type.