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Free Online DateTime Converter

Convert between Unix timestamps, epoch time, ISO 8601, and all common date formats instantly in your browser. Free developer tools for working with time — no signup, no server required.

Popular DateTime Converter Tools

Click any tool below for a dedicated converter page with full instructions.

Unix Timestamp to DateTime Converter

Free converter

DateTime to Unix Timestamp Converter

Date Format Converter

Free converter

When would you need this?

Common scenarios where DateTime conversion tools save time in development and data workflows.

Debug API timestamps

Convert Unix timestamps from API responses, server logs, and database records to readable dates for debugging and analysis.

Generate timestamps for APIs

Convert a specific date and time to a Unix timestamp for use in API requests, database queries, or test data that requires epoch time parameters.

Convert between date formats

Convert between US format (MM/DD/YYYY), EU format (DD/MM/YY), ISO 8601, and other date formats for international data exchange.

Work with JWT tokens

Decode and verify JWT token expiration times (exp and iat claims) stored as Unix timestamps by converting them to readable dates.

Analyze log files

Convert Unix timestamps from server logs, application logs, and monitoring tools to readable dates for analysis and reporting.

Calculate time differences

Convert dates to Unix timestamps to calculate the exact difference in seconds between two points in time for scheduling and time-based calculations.

Supported Formats

MorphFlux supports all common time and date formats used in development and data workflows.

Unix Timestamp

The number of seconds elapsed since January 1, 1970 00:00:00 UTC. The most widely used time representation in programming, databases, and APIs.

Milliseconds

Unix time in milliseconds (13-digit timestamp). Used by JavaScript's Date.now(), Java, and many modern APIs that require sub-second precision.

ISO 8601

The international standard for date and time representation (e.g. 2024-01-15T10:30:00Z). Unambiguous and widely used in APIs, databases, and data interchange.

US Format

Month/Day/Year format (MM/DD/YYYY) used in the United States. Commonly found in spreadsheets, reports, and applications targeting US audiences.

EU Format

Day/Month/Year format (DD/MM/YYYY) used in Europe and most of the world. Commonly confused with US format — a converter is essential for international data.

Relative Time

Human-readable relative time format (e.g. 3 days ago, in 2 hours). Used in social media, notifications, and user interfaces to show time in context.

Frequently Asked Questions

Common questions about Unix timestamps and date format conversion.

What is a Unix timestamp?

A Unix timestamp is the number of seconds elapsed since January 1, 1970 00:00:00 UTC, known as the Unix Epoch. It is the most widely used time representation in computing, used in databases, APIs, and programming languages.

What is the difference between seconds and milliseconds timestamps?

Unix timestamps in seconds are 10 digits long (e.g. 1700000000). Millisecond timestamps are 13 digits long (e.g. 1700000000000). JavaScript uses milliseconds by default, while most Unix systems use seconds.

Are my timestamps sent to a server?

No. All DateTime conversions run entirely in your browser using JavaScript and Day.js. Your data never leaves your device.

What is ISO 8601 format?

ISO 8601 is the international standard for date and time (e.g. 2024-01-15T10:30:00Z). It is unambiguous, sortable, and widely used in APIs and data interchange.

What is the current Unix timestamp?

Use the Unix Time Converter tool above to see the current Unix timestamp in real time. In JavaScript, Math.floor(Date.now() / 1000) gives you the current timestamp in seconds.

Why do US and EU date formats cause confusion?

The US uses MM/DD/YYYY while Europe uses DD/MM/YYYY. The date 01/02/2024 means January 2 in the US but February 1 in Europe. Always use ISO 8601 for unambiguous international data exchange.

What is epoch time?

Epoch time is another name for Unix time — the number of seconds since January 1, 1970 00:00:00 UTC. The terms Unix time, epoch time, and POSIX time all refer to the same thing.

How do I convert a date to a Unix timestamp in JavaScript?

Use new Date('2024-01-15').getTime() / 1000 to get a Unix timestamp in seconds, or new Date('2024-01-15').getTime() for milliseconds. MorphFlux's DateTime converter does this instantly without any code.

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