ext-time

A Rust library that extends the time crate with additional useful methods for time manipulation and formatting.

Features

• Extension methods for Time type:

  • Format time as HH:MM (to_shorten)
  • Parse time from HH:MM string (from_str)
  • Duration calculation with cross-day handling (sub_ext)
  • Time range checks (is_between)
  • Minute-based operations (reset_minute, is_same_minute, add_minutes)

• Extension methods for OffsetDateTime:

  • Timestamp conversions (milliseconds/seconds)
  • Timezone-aware formatting (display/Chinese format)
  • Parse from various formats (milliseconds, date-time string, simple format)
  • Minute-based operations

• Serde support for OffsetDateTime:

  • Serialize to Unix timestamp
  • Deserialize from Unix timestamp

Installation

Add this to your Cargo.toml:

[dependencies]
ext-time = "0.1.0"

Usage

use ext_time::prelude::*;
use time::macros::time;

// Time operations
let t = time!(23:30);
assert_eq!(t.to_shorten(), "23:30");
assert!(t.is_between(time!(23:00), time!(0:00)));
let next = t.add_minutes(40); // Handles midnight wraparound

// OffsetDateTime with timezone
let dt = OffsetDateTime::now_with_offset(8); // UTC+8
println!("{}", dt.to_display_string(8)); // "2024-03-20 15:30:45.123+08:00"
println!("{}", dt.to_chinese_string()); // "2024年03月20日 15时30分45秒 +8"

// Parse from various formats
let dt = OffsetDateTime::from_milliseconds(1694696340500, 8)?;
let dt = OffsetDateTime::from_date_time("20240320", "15:30:45", 123, 8)?;
let dt = OffsetDateTime::from_simple("20240320_1530", 8)?;

// Serde support
#[derive(Serialize, Deserialize)]
struct Event {
    #[serde(serialize_with = "serde_t2ts", deserialize_with = "serde_parse_ts")]
    timestamp: OffsetDateTime,
}

Documentation

For detailed documentation and examples, please check the API documentation.

License

This project is licensed under the MIT License - see the LICENSE file for details.

Contributing

Contributions are welcome! Please feel free to submit a Pull Request.