JavaScript中不使用moment将毫秒转换为指定格式日期时间

Got it, let's solve this without leaning on Moment.js—vanilla JavaScript has all the tools we need here. The goal is to turn a millisecond timestamp into the format DD-MM-YYYY HH:MM:SS (like 20-10-1994 06:00:00), so here's a straightforward approach:

Step-by-Step Function #

We'll use the native Date object to extract each time component, format each part to ensure two-digit values, and finally stitch everything together:

function formatMsToDateTime(timestampMs) {
  // Create a Date object from the millisecond timestamp
  const date = new Date(timestampMs);

  // Extract each component, adjusting for 0-indexed months and adding leading zeros where needed
  const day = String(date.getDate()).padStart(2, '0');
  const month = String(date.getMonth() + 1).padStart(2, '0'); // Months are 0-11, so +1
  const year = date.getFullYear();
  const hours = String(date.getHours()).padStart(2, '0');
  const minutes = String(date.getMinutes()).padStart(2, '0');
  const seconds = String(date.getSeconds()).padStart(2, '0');

  // Assemble into the target format
  return `${day}-${month}-${year} ${hours}:${minutes}:${seconds}`;
}

// Test with your example timestamp (782673600000 = 20 Oct 1994 06:00:00 UTC)
console.log(formatMsToDateTime(782673600000)); // Output: "20-10-1994 06:00:00"

Note About Time Zones #

The above code uses local time (based on the user's system clock/time zone). If you need UTC time instead, just swap out the get* methods with their getUTC* equivalents:

• date.getDate() → date.getUTCDate()
• date.getMonth() → date.getUTCMonth()
• date.getHours() → date.getUTCHours()
• And so on for minutes/seconds

This ensures the output reflects the UTC timestamp rather than local time.

内容的提问来源于stack exchange，提问作者Mahesh Chowdary