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Rust program to demonstrate the Utc::today() and Local::today() functions

Rust | Date & Time Example: Write a program to demonstrate the Utc::today() and Local::today() functions.
Submitted by Nidhi, on November 08, 2021

Problem Solution:

In this program, we will print today’s date according to UTC and Local time-zone.

Add Chrono date-time external library to your project

1. Create your project using the below command.
   

   $cargo new datetime -bin

2. Goto the project folder cd datetime and edit Cargo.toml file.
   

   $datetime>nano Cargo.toml

3. Then add dependency in Cargo.toml file
   

   [dependencies]
   chrono = "0.4"

4. After that, build your project using the below command
   

   $datetime>cargo build

5. Then execute your project after modification in src/main.rs source file.
   

   $datetime>cargo run

Program/Source Code:

The source code to demonstrate the Utc::today() and Local::today() function is given below. The given program is compiled and executed on UBUNTU 18.04 successfully.

// Rust program to demonstrate the 
// Utc::today() and Local::today()
// function

use chrono::prelude::*;

fn main() {
    let dt1 = Utc::today();
    println!("UTC -> Today's date: {}", dt1);
    
    let dt2 = Local::today();
    println!("Local -> Today's date: {}", dt2);
}

Output:

$datetime> cargo run
   Compiling datetime v0.1.0 (/home/arvind/Desktop/rust/datetime)
    Finished dev [unoptimized + debuginfo] target(s) in 0.29s
     Running `target/debug/datetime`

UTC -> Today's date: 2021-10-23UTC
Local -> Today's date: 2021-10-23-07:00

Explanation:

In the above program, we imported the "Chrono" library to our project for performing date and time operations. We imported the Chrono library using the below line:

use chrono::prelude::*;

In the main() function, we printed today's date according to UTC and current time-zone.

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