如何使用矩 js 从日期时间字符串中获取 am pm

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最佳答案

You are using the wrong format tokens when parsing your input. You should use ddd for an abbreviation of the name of day of the week, DD for day of the month, MMM for an abbreviation of the month's name, YYYY for the year, hh for the 1-12 hour, mm for minutes and A for AM/PM. See DD0 docs.

Here is a working live sample:

console.log( moment('Mon 03-Jul-2017, 11:00 AM', 'ddd DD-MMM-YYYY, hh:mm A').format('hh:mm A') );
console.log( moment('Mon 03-Jul-2017, 11:00 PM', 'ddd DD-MMM-YYYY, hh:mm A').format('hh:mm A') );

<script src="https://cdnjs.cloudflare.com/ajax/libs/moment.js/2.18.1/moment.min.js"></script>

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Convert the string to date using Date object

var myDate = new Date('Mon 03-Jul-2017, 06:00 PM');

working solution:

var myDate= new Date('Mon 03-Jul-2017, 06:00 PM');
var now = new Date();
console.log(moment(myDate).format('HH:mm')); // 24 hour format
console.log(moment(myDate).format('hh:mm')); // 12 hour format
console.log(moment(myDate).format('hh:mm A'));
console.log(moment(myDate).format('hh:mm a'));
console.log("Now: " + moment(now).format('hh:mm A'));

<script src="https://cdnjs.cloudflare.com/ajax/libs/moment.js/2.18.1/moment.min.js"></script>

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The previously mentioned answers are perfect. But there are some other ways also

console.log( moment('Mon 03-Jul-2017, 11:00 PM', 'ddd DD-MMM-YYYY, hh:mm A').format('LT') );

11:00 PM

moment().format('LT');   // 5:50 PM
moment().format('LTS');  // 5:50:35 PM
moment().format('L');    // 18/02/2022
moment().format('l');    // 18/2/2022
moment().format('LL');   // 18 February 2022
moment().format('ll');   // 18 Feb 2022
moment().format('LLL');  // 18 February 2022 5:50 PM
moment().format('lll');  // 18 Feb 2022 5:50 PM
moment().format('LLLL'); // Friday, 18 February 2022 5:50 PM
moment().format('llll');

For more information please visit https://momentjs.com/