Timestamp Converter

Timestamps (time stamps) are ways of representing a specific time moment. They are widely used in programming, databases, and recording systems.

Unix timestamp: The number of seconds passed since 1 January 1970 00:00 UTC (known as scriptText.epochi unix or "Unix epoch").

ISO 8601: An international standard for representing dates and times in text format (eg `2023-01-31T15:30:45.123Z`).

• Event recording: When did an action happen?
• Data Classification: Time series of articles, comments, etc.
• Caching: To check if the content has changed
• Synchronization: Synchronising system data
• End of content: When an offer or a token expires

• Time zones differences: Unix timestamps are always in UTC, while local hours vary
• Confusion of seconds/millisseconds: Some languages use milliseconds instead of seconds
• Range restrictions: The Year 2038 problem for 32-bit Unix timestamps
• Format: Different countries use different date formats (DD/MM/YYYY vs MM/DD/YYYY).

JavaScript

// Get the current Unix timestamp (in milliseconds)
const now = Date.now(); // 1677686400000

// Get the current Unix timestamp (in seconds)
const unixSeconds = Math.floor(Date.now() / 1000); // 1677686400

// Create date from Unix timestamp
const date = new Date(1677686400 * 1000);

// Convert to ISO string
const isoString = new Date().toISOString(); // "2023-03-01T12:00:00.000Z"

PHP

// Get the current Unix timestamp
$now = time(); // 1677686400

// Create date from Unix timestamp
$date = date('Y-m-d H:i:s', 1677686400); // "2023-03-01 14:00:00"

// Convert date to Unix timestamp
$timestamp = strtotime('2023-03-01 14:00:00'); // 1677686400